Goodbye, Fish: Rising CO2 Direct Threat to Sea Life

Published on Monday, January 16, 2012 by Common Dreams

Goodbye, Fish: Rising CO2 Direct Threat to Sea Life

Study: Rising CO2 affecting brains, central nervous systems of sea fish

- Common Dreams staff

New research shows the disastrous consequences the world's rising carbon dioxide levels are having on ocean life.

Photo courtesy of Dr Simon Foale, ARC Centre of Excellence for Coral Reef Studies A team of researchers from the Australian Research Council Centre of Excellence for Coral Reef Studies and James Cook University published their findings in the journal Nature Climate Change. They document how elevated CO2 is "driving fish crazy."

The Australian Associated Press reports that the new research point to ocean problems beyond acidification. From Professor Phillip Munday, one of the researchers:

''We've now established it isn't simply the acidification of the oceans that is causing disruption, as is the case with shellfish and plankton with chalky skeletons. But the CO2 itself is damaging the fishes' central nervous systems.''

Agence France-Presse reports:

The team began by studying how baby clown and damsel fishes performed alongside their predators in CO2-enriched water.

They found that while the predators were somewhat affected, the baby fish suffered much higher rates of attrition.

"Our early work showed that the sense of smell of baby fish was harmed by higher CO2 in the water, meaning they found it harder to locate a reef to settle on or detect the warning smell of a predator fish," said Munday.

The team then examined whether fishes' sense of hearing -- used to locate and home in on reefs at night, and avoid them during the day -- was affected.

"The answer is, yes it was. They were confused and no longer avoided reef sounds during the day. Being attracted to reefs during daylight would make them easy meat for predators."

Prof. Munday issued a stark warning:

“We’ve found that elevated CO2 in the oceans can directly interfere with fish neurotransmitter functions, which poses a direct and previously unknown threat to sea life,” Prof. Munday says.

Prof. Munday said that around 2.3 billion tonnes of human CO2 emissions dissolve into the world’s oceans every year, causing changes in the chemical environment of the water in which fish and other species live.

Newly discovered molecules in atmosphere may offset global warming

Newly discovered molecules in atmosphere may offset global warming

By Muriel Kane
Friday, January 13, 2012

Topics: global warming ♦ lawrence berkeley national laboratory ♦ Rudolph Criegee

A newly discovered form of chemical intermediary in the atmosphere has the ability to remove pollutants in a way that leads to cloud-formation and could potentially help offset global warming.

The existence of these so-called Criegee biradicals, which are formed when ozone reacts with a certain class of organic compounds, was theorized over fifty years ago, but they have now been created and studied in the laboratory for the first time.

According to Science Daily, the discovery was made possible through the use of a third-generation synchrotron at the Lawrence Berkeley National Laboratory which produces an intense, tunable light that enables scientists to differentiate between molecules which contain the same atoms but arranged in different combinations.

The Criegee biradicals — named after Rudolph Criegee, who postulated their existence in the 1950′s — turn out to react with pollutants, such as sulfur dioxide and nitrogen dioxide, much more rapidly than expected to form sulphates and nitrates. “These compounds,” Science Daily explains, “will lead to aerosol formation and ultimately to cloud formation with the potential to cool the planet.”

One of the authors of the paper describing the discovery, Dr. Carl Percival of the University of Manchester, believes that the results “have a significant impact on our understanding of the oxidising capacity of the atmosphere and have wide ranging implications for pollution and climate change.” He notes that since the compounds which form these molecules are organic in origin, it may mean that “the ecosystem is negating climate change more efficiently than we thought it was.”

The scientists emphasize, however, that they’re a long way off from being able to control the formation of Criegee biradicals themselves, which means that the best thing we can do is preserve the environment so that it can do its job.

Photo by Alex Chupryna *Licanse: GFDL {{GFDL-self}} from Wikimedia Commons

Muriel Kane

Muriel Kane is an associate editor at Raw Story. She joined Raw Story as a researcher in 2005, with a particular focus on the Jack Abramoff affair and other Bush administration scandals. She worked extensively with former investigative news managing editor Larisa Alexandrovna, with whom she has co-written numerous articles in addition to her own work. Prior to her association with Raw Story, she spent many years as an independent researcher and writer with a particular focus on history, literature, and contemporary social and political attitudes. Follow her on Twitter at @Muriel_Kane

Science News

Offsetting Global Warming: Molecule in Earth's Atmosphere Could 'Cool the Planet'

ScienceDaily (Jan. 12, 2012) — Scientists have shown that a newly discovered molecule in Earth's atmosphere has the potential to play a significant role in off-setting global warming by cooling the planet.

Researchers found that Criegee biradicals react more rapidly than first thought and will accelerate the formation of sulphate and nitrate in the atmosphere. These compounds will lead to aerosol formation and ultimately to cloud formation with the potential to cool the planet. (Credit: © Sergey Tokarev / Fotolia)

In a breakthrough paper published in Science, researchers from The University of Manchester, The University of Bristol and Sandia National Laboratories report the potentially revolutionary effects of Criegee biradicals.

These invisible chemical intermediates are powerful oxidisers of pollutants such as nitrogen dioxide and sulfur dioxide, produced by combustion, and can naturally clean up the atmosphere.

Although these chemical intermediates were hypothesised in the 1950s, it is only now that they have been detected. Scientists now believe that, with further research, these species could play a major role in off-setting climate change.

The detection of the Criegee biradical and measurement of how fast it reacts was made possible by a unique apparatus, designed by Sandia researchers, that uses light from a third-generation synchrotron facility, at the Lawrence Berkeley National Laboratory's Advanced Light Source.

The intense, tunable light from the synchrotron allowed researchers to discern the formation and removal of different isomeric species -- molecules that contain the same atoms but arranged in different combinations.

The researchers found that the Criegee biradicals react more rapidly than first thought and will accelerate the formation of sulphate and nitrate in the atmosphere. These compounds will lead to aerosol formation and ultimately to cloud formation with the potential to cool the planet.

The formation of Criegee biradicals was first postulated by Rudolf Criegee in the 1950s. However, despite their importance, it has not been possible to directly study these important species in the laboratory.

In the last 100 years, Earth's average surface temperature increased by about 0.8 °C with about two thirds of the increase occurring over just the last three decades.

Most countries have agreed that drastic cuts in greenhouse gas emissions are required, and that future global warming should be limited to below 2.0 °C (3.6 °F).

Dr Carl Percival, Reader in Atmospheric Chemistry at The University of Manchester and one of the authors of the paper, believes there could be significant research possibilities arising from the discovery of the Criegee biradicals.

He said: "Criegee radicals have been impossible to measure until this work carried out at the Advanced Light Source. We have been able to quantify how fast Criegee radicals react for the first time.

"Our results will have a significant impact on our understanding of the oxidising capacity of the atmosphere and have wide ranging implications for pollution and climate change.

"The main source of these Criegee biradicals does not depend on sunlight and so these processes take place throughout the day and night."

Professor Dudley Shallcross, Professor in Atmospheric Chemistry at The University of Bristol, added: "A significant ingredient required for the production of these Criegee biradicals comes from chemicals released quite naturally by plants, so natural ecosystems could be playing a significant role in off-setting warming."

The Washington Post

A new way of thinking as sea levels rise

View Photo Gallery —  Obama administration members participated in international climate talks in Greenland in an effort to focus attention on polar melting even as new data suggest that the rate of melting is much higher than anticipated.

By Darryl Fears,

From his government office in Virginia Beach, Clay Bernick can see the future, and that future looks a rather lot like the movie “Waterworld.”

The sea level is rising in Virginia Beach and the entire area known as Hampton Roads because of the warming climate, and the area also happens to be sinking for other geological reasons.

Within 50 years, a big part of Virginia Beach’s identity — its beach — could be lost if nothing is done, said Bernick, the city’s environment and sustainability administrator. Large pieces of land could also be lost to the ocean in Norfolk within a few generations.

In fact, the National Oceanic and Atmospheric Administration warns that, outside of greater New Orleans, Hampton Roads is at the greatest risk from sea-level rise for any area its size.

“It’s a significant threat,” Bernick said. “At this point, I wouldn’t put it in the category of fear, because it’s a long way off.” But he added: “You’ve got multiple factors with flashing lights saying, ‘Okay, guys, what are you going to do?’ ”

To help answer that question in the past, municipalities turned to a manual published by the Army Corps of Engineers since 1954 on how to protect shores by holding back the sea.

But earlier this month, the U.S. Environmental Protection Agency published the first manual on how not to hold it back, arguing that costly seawalls and dikes eventually fail because sea-level rise is unstoppable. The federal Global Change Research Program estimates that the sea level will rise 14 to 17 inches in the next century around Hampton Roads.

The analysis, “Rolling Easements,” published on the EPA’s Web site, hopes “to get people on the path of not expecting to hold back the sea” as the warming climate is expected to melt ice around the globe, EPA researcher James G. Titus said.

Titus said state and local governments should start crafting laws and ordinances to limit development on vulnerable lands and encourage people living there to move inland. Reflecting the scale of the problem, the Hampton Roads Planning District Commission issued a report this month warning that 1 million residents would now be threatened by a Category 4 hurricane.

The EPA report said governments have three options to deal with sea-level rise: They can stay on the well-worn path of building expensive protection and raising streets and buildings. They can beat an organized retreat from the shore, perhaps by offering financial incentives to people and organizations to move inland. Or they can allow people to do whatever they want for their waterfront properties but tell them in no uncertain terms that they are on their own when the waters rise.

In Hampton Roads, planners and environmentalists said the EPA recommendations are on the table. Bernick called the report “useful.” John Boon, a professor emeritus at the Virginia Institute of Marine Science who has studied sea-level rise for years, called it “very well reasoned.”

Most people aren’t taking the threat of sea-level rise decades from now too seriously, but planners say it is worrisome when you consider what’s at stake — public roads, schools, bridges, tunnels, museums, police stations and housing developments that are built to last well beyond the average 30-year home mortgage.

View Photo Gallery —  Obama administration members participated in international climate talks in Greenland in an effort to focus attention on polar melting even as new data suggest that the rate of melting is much higher than anticipated.

“It could result in those things having a life span less than what we budgeted for,” said John Carlock, deputy executive director of the Hampton Roads Planning District Commission. “That part of it is trying to make wise use of taxpayer funds.”

Cities such as Norfolk have already experienced the effects of sea-level rise as powerful storms pushed water inland, leading to flooding in places where it once was rare.

nShare

Rising sea, sinking land

In a report this month, “Preparing for the Changing Climate,” the group Clean Air Cool Planet wrote that the increased flooding was inevitable along the Atlantic coast because the number of federally declared storms has increased — up by 50 percent over 20 years, for instance, in New England.

“In New Hampshire alone, the costs associated with declared storm damages have increased nearly 15-fold and the state has suffered through four ‘100-year floods’ in the last decade,” the report said.

Seven hundred miles south of New Hampshire, Hampton Roads is even more vulnerable because several rivers run through it on their way to the Chesapeake Bay and eventually the Atlantic Ocean. Its dense population of about 2 million residents swells with summer vacationers, making it “the largest urban concentration south of the Northeast until you get to Florida,” Bernick said.

Unfortunately, this crowded, low-lying area also has long-term geological issues to deal with. Thirty-five million years ago, a meteor landed relatively close by and created the Chesapeake Bay Impact Crater. Hampton Roads is also home to a downward- pressing glacial formation created during the Ice Age. Scientists theorize that these ancient occurrences are causing the land to sink — and together account for about one-third of the sea-level change.

But human nature leads to rebuilding flooded areas however risky that might be, rather than leaving them.

“Unfortunately, we have a major storm like Hurricane Isabel and a lot of homes are flooded and people feel the economic impact,” said Boon, the professor. In response, city leaders hustle to protect shores in a way “that’s not very well thought-out,” he said.

A few years ago the city spent $1.5 million to elevate some homes in the Larchmont area, knowing the water will probably crawl to their doorsteps again.

If this keeps up, insurance rates will skyrocket as storms sweep the rising seas onto roads and inside people’s homes and businesses.

Building walls to protect development will cost a fortune, said James V. Koch, a professor of economics at Old Dominion University. Koch said the average cost of erecting a dike is about $35 million per mile.

“Norfolk has a little bit of that now,” Koch said of the city’s defenses, “but they’re not very well protected.”

A rise of a few inches will cause significant problems, Koch said, because much of Hampton Roads, including the Navy base, is at sea level.

In fact, two-thirds of the economy of Hampton Roads is based on “things significantly related to sea rise,” Koch said, and most especially Virginia Beach. A sustained rise in sea levels would be “a big thing” for the beach and those who make a living off it, Koch said.

Koch proposes one possible solution: “They have to think about moving back hotels or raising them up to make it possible to maintain a tourist presence.”

The Washington Post

Virginia residents oppose preparations for climate-related sea-level rise

As the opposition grew over the summer, confrontations became so heated that some planners posted uniformed police officers at meetings and others hired consultants to help calm audiences and manage the indoor environment, several planners said.

In James City County, speakers were shouted away from a podium. In Page County, angry farmers forced commissioners to stop a meeting. In Gloucester County, planners sat stone-faced as activists took turns reading portions of the 500-page Agenda 21 text, delaying a meeting for more than an hour.

A map of Virginia’s Middle Peninsula

Agenda 21 is an agenda in name only, environmentalists say. The document encourages world governments to consider environmental impacts before developing land or slashing rain forests for resources, said Patty Glick, senior climate-change specialist for the National Wildlife Federation.

“Agenda 21 is the least thing they should be worried about,” said Glick, who like other environmentalists contacted by The Washington Post was surprised at the attention being given the document. “It has no legal or policy implication for local governments in the United States.”

Holt, who began scrutinizing public planning when her interior design business failed after the housing bubble popped, begs to differ. She sees the document as evidence of a global agenda that threatens property rights.

Her suspicions echo those of Tom DeWeese, president of the conservative American Policy Center, who wrote an essay opposing “smart growth” titled “Fight Agenda 21 or Lose Your Freedom.” The ultra-conservative John Birch Society cautions adherents through its Web site that the “Agenda 21 program may already be in your local community, through your home town or city’s membership in . . . Local Governments for Sustainability.”

“I don’t try to shove this down anybody’s throat. I’ve been able to connect the dots,” said Holt, who added that she has spoken against sustainability plans at meetings but doesn’t condone shouting and interrupting speakers. “They’re just doing their jobs.”

Lawrence and other planners have asked counselors for advice on how to control testy audiences. They were told to better explain their plans and recognize people who speak up but also to get rid of standing microphones where angry speakers line up.

“Let them talk, and let them vent,” planner Bruce Peshoff advised. “Sometimes planners . . . are their own worst enemy. They think they have to adhere to a schedule. That just lends to the feeling of oppression.”

In Carroll County planning commission meetings, Agenda 21 kept coming up, said Peshoff, a Kansas planner who was called on to help the county manage its meetings because his firm, Planning Works, emphasizes consensus-building. If the talk took a few extra minutes, “we would go with the flow,” he said. “That way, we didn’t monopolize a meeting.”

In time, a plan that preserved farms by prohibiting economic development that could have enriched some farmers passed, Peshoff said. At the same time, an interstate corridor was designated as an economic generator.

Shereen Hughes, a former planning commissioner in James City County, worried that some officials are giving ground to fearmongers. The uprising against smart growth “is ridiculous” and “a conspiracy theory,” she said.

But it’s effective. Planners aren’t saying this is wrong, Hughes said, because “most are afraid they won’t have a job if they’re too vocal about this issue.” Tea party members have political allies who “might stand up” against planners who complain, Hughes said.

Lawrence, a native of Gloucester County, bristled at being accused of undermining the constitutional rights of Virginians.

“It’s driving public policy sideways,” Lawrence said. “It’s not advancing it. It’s not going backward. The voice of a minority is trying to assert itself as the voice of the majority.”

Nonetheless, he said he has to give a little to get a little. “I welcome them every time,” Lawrence said.

Carbon Emissions Show Biggest Jump Ever Recorded

By JUSTIN GILLIS

Published: December 4, 2011

Global emissions of carbon dioxide from fossil-fuel burning jumped by the largest amount on record last year, upending the notion that the brief decline during the recession might persist through the recovery.

Emissions rose 5.9 percent in 2010, according to an analysis released Sunday by the Global Carbon Project, an international collaboration of scientists tracking the numbers. Scientists with the group said the increase, a half-billion extra tons of carbon pumped into the air, was almost certainly the largest absolute jump in any year since the Industrial Revolution, and the largest percentage increase since 2003.

The increase solidified a trend of ever-rising emissions that scientists fear will make it difficult, if not impossible, to forestall severe climate change in coming decades.

The researchers said the high growth rate reflected a bounce-back from the 1.4 percent drop in emissions in 2009, the year the recession had its biggest impact.

They do not expect the extraordinary growth to persist, but do expect emissions to return to something closer to the 3 percent yearly growth of the last decade, still a worrisome figure that signifies little progress in limiting greenhouse gases. The growth rate in the 1990s was closer to 1 percent yearly.

The combustion of coal represented more than half of the growth in emissions, the report found.

In the United States, emissions dropped by a remarkable 7 percent in the recession year of 2009, but rose by just over 4 percent last year, the new analysis shows. This country is the world’s second-largest emitter of greenhouse gases, pumping 1.5 billion tons of carbon into the atmosphere last year.

The United States was surpassed several years ago by China, where emissions grew 10.4 percent in 2010, with that country injecting 2.2 billion tons of carbon into the atmosphere. Carbon dioxide emissions are usually measured by the weight of carbon they contain.

The new figures come as delegates from 191 countries meet in Durban, South Africa, for yet another negotiating session in a global control effort that has been going on, with minimal success, for the better part of two decades.

“Each year that emissions go up, there’s another year of negotiations, another year of indecision,” said Glen P. Peters, a researcher at the Center for International Climate and Environmental Research in Oslo and a leader of the group that produced the new analysis. “There’s no evidence that this trajectory we’ve been following the last 10 years is going to change.”

Scientists say the rapid growth of emissions is warming the Earth, threatening the ecology and putting human welfare at long-term risk. But their increasingly urgent pleas that society find a way to limit emissions have met sharp political resistance in many countries, including the United States, because doing so would entail higher energy costs.

The new figures show a continuation of a trend in which developing countries, including China and India, have surpassed the wealthy countries in their overall greenhouse emissions. In 2010, the combustion of fossil fuels and the production of cement sent more than nine billion tons of carbon into the atmosphere, the new analysis found, with 57 percent of that coming from developing countries.

Emissions per person, though, are still sharply higher in the wealthy countries, and those countries have been emitting greenhouse gases far longer, so they account for the bulk of the excess gases in the atmosphere. The level of carbon dioxide, the main such gas, has increased 40 percent since the Industrial Revolution.

On the surface, the figures of recent years suggest that wealthy countries have made headway in stabilizing their emissions. But Dr. Peters pointed out that in a sense, the rich countries have simply exported some of them.

The fast rise in developing countries has been caused to a large extent by the growth of energy-intensive manufacturing industries that make goods that rich countries import. “All that has changed is the location in which the emissions are being produced,” Dr. Peters said.

Many countries, as part of their response to the economic crisis, invested billions in programs designed to make their energy systems greener. While it is possible those will pay long-term dividends, the new numbers suggest they have had little effect so far.

The financial crisis “was an opportunity to move the global economy away from a high-emissions trajectory,” said a scientific paper about the new figures, released online on Sunday by the journal Nature Climate Change. “Our results provide no indication of this happening.”

A version of this article appeared in print on December 5, 2011, on page A4 of the New York edition with the headline: Global Carbon Dioxide Emissions in 2010 Show the Biggest Jump Ever Recorded.

Global Warming

Global Warming Facts

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GLOBAL WARMING AWARENESS

Global Warming Skeptics - Skeptics of global warming think that global warming is not an ecological trouble.

Global Warming Facts - 8 Facts about Global Warming

Causes of Global Warming - The Green house gases are the main culprits of the global warming. The green house gases like carbon dioxide, methane, and nitrous oxide are playing hazards in the present times.

Green House Gasses are the ingredients of the atmosphere that add to the greenhouse effect.

Al Gore Global Warming Initiative - Gore has written a book that archives his advice that Earth is dashing toward an immensely warmer future.

Global warming is caused by green house gases, which trap in the sun’s infrared rays in the earth’s atmosphere, which in turn heat up the earth’s atmosphere. These green house effect warming is called as global warming. The effects of green house effect are visible more prominently in the recent years, with number of natural calamities on the rise in the whole world.

The global warming has happened in the past few years and is evident from the rise in mean temperature of the earth’s atmosphere. The main causes for the global warming are attributed to release of green house gases by human activities. The main gases contributing to green house effect are carbon dioxide, water vapor, methane and nitrous oxide. The largest producers of these gases are the thermal power plants, which burn the fossil fuels and produce these gases in large quantities. The second biggest sources of these green house gases are the road vehicles and industries.

The global warming has led to increase in mean earth surface temperature and thus melting of polar ice. There are frequent melt down of glaciers that result in floods and other natural calamities. The melting of ice at the poles had led the mean sea level. And further increase in temperature may further melt the ice and lead to further increase in mean sea level, which will engulf low lying countries.

The effect of global warming is very evident on the animal kingdom also. Some animals have become extinct due to loss of their natural habitat or their inability to evolve to the rapid changes in the climate. Also there is a change in their life style because of the changes in the seasons. The migrating birds have changed their time of travel and also their place of migration.

The effect of global warming can be felt on seasons too. There is shift in season cycle, as the summers are getting longer than the winters. This has affected the animals and made them to change their lifestyle accordingly, and those who failed to do so have perished or on the verge of extinction.

The global warming is also responsible for the introduction of some new diseases. The bacteria are more effective and multiply much faster in warmer temperatures compared to cold temperatures. The increase in temperature has led to increase in the microbes that cause diseases.

Global warming is also effecting the crop production, as the crops are getting destroyed by the sudden change in temperatures or sudden on set of rains. Also the flash floods and other natural calamities affect the crop.

As a matter of fact, because of global warming, the earth’s atmosphere is getting more unpredictable with heavy rains in the areas, which have scanty rainfall or drought in the areas, which received good annual rainfall. The months of rainfall has also getting affected.

But there are some people on the other side of the wall also, they believe that the global warming is a natural process and cannot disturb our ecosystem. The earth’s surface mean temperature was even higher a long time ago, and the ecosystem has evolved from that temperature to this. So it can evolve further. But the changes that are happening now are rather fast compared to earlier times.

Global Warming is an International Issue

The average facade temperature of the globe has augmented more than 1 degree Fahrenheit since 1900 and the speed of warming has been almost three folds the century long average since 1970. This increase in earth’s average temperature is called Global warming. More or less all specialists studying the climate record of the earth have the same opinion now that human actions, mainly the discharge of green house gases from smokestacks, vehicles, and burning forests, are perhaps the leading power driving the fashion.
The gases append to the planet's normal greenhouse effect, permitting sunlight in, but stopping some of the ensuing heat from radiating back to space. Based on the study on past climate shifts, notes of current situations, and computer simulations, many climate scientists say that lacking of big curbs in greenhouse gas discharges, the 21st century might see temperatures rise of about 3 to 8 degrees, climate patterns piercingly shift, ice sheets contract and seas rise several feet. With the probable exemption of one more world war, a huge asteroid, or a fatal plague, global warming may be the only most danger to our planet earth.

Global Warming Causes
As said, the major cause of global warming is the emission of green house gases like carbon dioxide, methane, nitrous oxide etc into the atmosphere. The major source of carbon dioxide is the power plants. These power plants emit large amounts of carbon dioxide produced from burning of fossil fuels for the purpose of electricity generation. About twenty percent of carbon dioxide emitted in the atmosphere comes from burning of gasoline in the engines of the vehicles. This is true for most of the developed countries. Buildings, both commercial and residential represent a larger source of global warming pollution than cars and trucks.

Building of these structures require a lot of fuel to be burnt which emits a large amount of carbon dioxide in the atmosphere. Methane is more than 20 times as effectual as CO2 at entrapping heat in the atmosphere. Methane is obtained from resources such as rice paddies, bovine flatulence, bacteria in bogs and fossil fuel manufacture. When fields are flooded, anaerobic situation build up and the organic matter in the soil decays, releasing methane to the atmosphere. The main sources of nitrous oxide include nylon and nitric acid production, cars with catalytic converters, the use of fertilizers in agriculture and the burning of organic matter. Another cause of global warming is deforestation that is caused by cutting and burning of forests for the purpose of residence and industrialization.

Global Warming is Inspiring Scientists to Fight for Awareness

Scientists all over the world are making predictions about the ill effects of Global warming and connecting some of the events that have taken place in the pat few decades as an alarm of global warming. The effect of global warming is increasing the average temperature of the earth. A rise in earth’s temperatures can in turn root to other alterations in the ecology, including an increasing sea level and modifying the quantity and pattern of rainfall. These modifications may boost the occurrence and concentration of severe climate events, such as floods, famines, heat waves, tornados, and twisters. Other consequences may comprise of higher or lower agricultural outputs, glacier melting, lesser summer stream flows, genus extinctions and rise in the ranges of disease vectors. As an effect of global warming species like golden toad, harlequin frog of Costa Rica has already become extinct. There are number of species that have a threat of disappearing soon as an effect of global warming. As an effect of global warming various new diseases have emerged lately. These diseases are occurring frequently due to the increase in earths average temperature since the bacteria can survive better in elevated temperatures and even multiplies faster when the conditions are favorable. The global warming is extending the distribution of mosquitoes due to the increase in humidity levels and their frequent growth in warmer atmosphere. Various diseases due to ebola, hanta and machupo virus are expected due to warmer climates. The marine life is also very sensitive to the increase in temperatures. The effect of global warming will definitely be seen on some species in the water. A survey was made in which the marine life reacted significantly to the changes in water temperatures. It is expected that many species will die off or become extinct due to the increase in the temperatures of the water, whereas various other species, which prefer warmer waters, will increase tremendously. Perhaps the most disturbing changes are expected in the coral reefs that are expected to die off as an effect of global warming. The global warming is expected to cause irreversible changes in the ecosystem and the behavior of animals.

A group of scientists have recently reported on the surprisingly speedy rise in the discharge of carbon and methane release from frozen tundra in Siberia, now starting to melt because of human cause increases in earth’s temperature. The scientists tell us that the tundra is in danger of melting holds an amount of extra global warming pollution that is equivalent to the net amount that is previously in the earth's atmosphere. Likewise, earlier one more team of scientists reported that the in a single year Greenland witnessed 32 glacial earthquakes between 4.6 and 5.1 on the Richter scale. This is a disturbing sign and points that a huge destabilization that may now be in progress deep within the second biggest accretion of ice on the planet. This ice would be enough to raise sea level 20 feet worldwide if it broke up and slipped into the sea. Each day passing brings yet new proof that we are now in front of a global emergency, a climate emergency that needs instant action to piercingly decrease carbon dioxide emissions worldwide in order to turn down the earth's rising temperatures and avoid any catastrophe.

It is not easy to attach any particular events to global warming, but studies prove the fact that human activities are increasing the earth’s temperature. Even though most predictions focus on the epoch up to 2100, even if no further greenhouse gases were discharged after this date, global warming and sea level would be likely to go on to rise for more than a millennium, since carbon dioxide has a long average atmospheric life span.

You Can Help Fight Global Warming

Many efforts are being made by various nations to cut down the rate of global warming. One such effort is the Kyoto agreement that has been made between various nations to reduce the emissions of various green house gases. Also many non profit organizations are working for the cause. Al Gore was one of the foremost U.S. politicians to heave an alarm about the hazards of global warming. He has produced a significantly acclaimed documentary movie called "An Inconvenient Truth," and written a book that archives his advice that Earth is dashing toward an immensely warmer future. Al Gore, the former vice president of United States has given various speeches to raise an awareness of global warming. He has warned people about the ill effects of Global warming and its remedies.

But an interesting side of the global warming episode is that there are people who do not consider global warming as something that is creating a problem. Skeptics of global warming think that global warming is not an ecological trouble. According to the global warming skeptics, the recent enhancement in the earth's average temperature is no reason for alarm. According to them earth's coastlines and polar ice caps are not at a risk of vanishing. Global warming skeptics consider that the weather models used to establish global warming and to forecast its impacts are distorted. According to the models, if calculations are made the last few decades must have been much worse as compared to actually happened to be. Most of the global warming skeptics believe that the global warming is not actually occurring. They stress on the fact the climatic conditions vary because of volcanism, the obliquity cycle, changes in solar output, and internal variability. Also the warming can be due to the variation in cloud cover, which in turn is responsible for the temperatures on the earth. The variations are also a result of cosmic ray flux that is modulated by the solar magnetic cycles.

Global Warming Skeptics

The global warming skeptics are of the view that the global warming is a good phenomenon and should not be stopped. There are various benefits of global warming according to them. According to the skeptics, the global warming will increase humidity in tropical deserts. Also the higher levels of carbon dioxide in the atmosphere trigger plant growth. As predicted, due to the global warming the sea levels will rise. But this can be readily adapted. Another argument of global warming skeptics is that earth has been warmer than today as seen in its history. The thought is that global warming is nothing to get afraid of because it just takes us back to a more natural set of environment of the past. Animals and plants appeared to do just fine in those eras of warm climate on the earth. According to few skeptics, the present chilly climate on the earth is an abnormality when judged over the geographical scale. Over geologic time, the earth’s mean temperature is 22 degrees C, as compared to today's 15.5 degrees C.

Is Al Gore's An Inconvenient Truth accurate? Yes Indeed!

Skeptical Science
Getting Skeptical About Global Warming Skepticism

Is Al Gore's An Inconvenient Truth accurate?

Al Gore's film was "broadly accurate" according to an expert witness called when an attempt was made through the courts to prevent the film being shown in schools.

The skeptic argument...

Al Gore got it wrong
"An Inconvenient Truth was criticised by a high court judge who highlighted 'nine scientific errors'. For example, Gore claimed two graphs plotting C02 and temperature showed 'an exact fit'. The judge said 'the two graphs do not establish what Mr Gore asserts'. Gore said the disappearance of snow on Mt Kilimanjaro was attributable to humans. The judge said that could not be established." (The Guardian)

What the science says...

Al Gore, certainly the most vilified proponent of climate change anywhere in the world, earned most of this enmity through the success of a film he presented called An Inconvenient Truth (AIT). The film was a staid presentation of climate science to date, a round-up of research, science and projections, with many cinematic sequences employed to harness the power of the medium.

The majority of the film, covering issues like Himalayan Glaciers, Greenland and Antarctica losing ice, the severity of hurricanes and other weather phenomena, was accurate and represented the science as it stood. Since the release of the film, considerably more evidence has been found in support of the science and projections in the film.

One claim was in error, as was one attribution of a graph. The error was in the claim that climate change had caused the shrinking of Mount Kilimanjaro, although the evidence that the shrinkage was most likely caused by deforestation did not appear until after the film was made. The error of attribution was in reference to a graph of temperature and attributes it mistakenly to a Dr. Thompson, when it was actually a combination of Mann’s hockey stick and CRU surface temperature data.

The Legal Case

The film is also subject to attack on the grounds that Al Gore was prosecuted in the UK and a judge found many errors in the film. This is untrue.

The case, heard in the civil court, was brought by a school governor against the Secretary of State for Education, in an attempt to prevent the film being distributed to schools. Mr. Justice Burton, in his judgement, ordered that teaching notes accompanying the film should be modified to clarify the speculative (and occasionally hyperbolic) presentation of some issues.

Mr. Justice Burton found no errors at all in the science. In his written judgement, the word error appears in quotes each time it is used – nine points formed the entirety of his judgement - indicating that he did not support the assertion the points were erroneous. About the film in general, he said this:

17. I turn to AIT, the film. The following is clear:

i) It is substantially founded upon scientific research and fact, albeit that the science is used, in the hands of a talented politician and communicator, to make a political statement and to support a political programme.

22. I have no doubt that Dr Stott, the Defendant's expert, is right when he says that:
"Al Gore's presentation of the causes and likely effects of climate change in the film was broadly accurate."

The judge did identify statements that had political implications he felt needed qualification in the guidance notes for teachers, and ordered that both qualifications on the science and the political implications should be included in the notes. Al Gore was not involved in the case, was not prosecuted, and because the trial was not a criminal case, there was no jury, and no guilty verdict was handed down.

Note: the vilification of Al Gore is best understood in the context of personalisation. When opponents attack something abstract - like science - the public may not associate with the argument. By giving a name and a face and a set of behavioural characteristics - being a rich politician, for example - it is easy to create a fictional enemy through inference and association. Al Gore is a successful politician who presented a film, his training and experience suitable to the task. To invoke Gore is a way to obfuscate about climate science, for which Gore has neither responsibility, claim nor blame.

Last updated on 7 October 2010 by gpwayne.

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Related Arguments

• Glaciers are growing
• Hurricanes aren't linked to global warming
• Mt. Kilimanjaro's ice loss is due to land use
• CO2 lags temperature

Further reading

• Al Gore responds to the UK court case that questions An Inconvenient Truth.
  
• William Connelley writes a good article The Boring Truth about the judge finding 9 errors in An Inconvenient Truth including links to other blog reactions.
• Real Climate's Gavin Schmidt and Michael Mann look at exactly what Gore said in each of his 9 errors in Convenient Untruths and find "the 9 points are not "errors" at all (with possibly one unwise choice of tense on the island evacuation point)".
• Catherine Brahic at New Scientist wonders Al Gore's An Inconvenient Truth: unscientific? She concludes "Gore oversimplified certain points, made a few factual errors and, at times, chose the wrong poster child (Mount Kilimanjaro should have been replaced by any number of Alaskan or Andean glaciers, for instance). It's unfortunate, but it remains the most comprehensive popular documentary on climate change science I have seen."
• Greg Hoke has gone to the trouble of transcribing an unofficial transcript of An Inconvenient Truth - useful for reading Al Gore's exact words.