Climate Change
Impacts in Colorado Global Imapcts Climate Justice
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Over the past 200 years, the burning of fossil fuels, such as coal and oil, and deforestation have caused the concentrations of heat-trapping greenhouse gases to increase significantly in our atmosphere. These gases prevent heat from escaping to space, somewhat like the glass panels of a greenhouse. |
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Greenhouse gases are necessary to life as we know it, because they keep the planet's surface warmer than it otherwise would be. But, as the concentrations of these gases continue to increase in the atmosphere, the Earth's temperature is climbing above past levels.
As the emission of greenhouse gases continue to increase, climate models predict that the average temperature at the Earth's surface could increase from 3.2 to 7.2ºF (above 1990 levels by the end of this century.) Scientists are certain that human activities are changing the composition of the atmosphere. Check out the Global Impacts link to see what these temperature changes could mean. |
Climate Change In the News
NCAR: Polar ice melt could stabalize
Denver Post (August 2011)
Polar ice, although still headed for a melt down, may temporarily stabilie or maybe even expand over the next few decades even as the climate continues to warm, Boulder scientists said today.
Fighting climate change by not focusing on climate change
Time (August 2011)
Climate Change advocates haven't had much to celebrate recently, but New York City Mayor Michael Bloomberg's announcement last week that he was giving $50 million to the Sierra Club's Beyond Coal campaign marked a real win.
China fears consumer impact on global warming
New York Times (2010)
Guangzhou, China - Premier Wen Jiabao has promised to use an "iron hand" this summer to make his nation more energy efficient. The central government has ordered cities to close inefficient factories by September, like the vast Guangzhou steel mill here, where most of the 6,000 workers will be laid off or pushed into early retirement.
Dutch review backs U.N. climate change report
USA Today (2010)
A Dutch review of a United Nations climate report backs its finding of global warming's dangers, but says the U.N. panel should be more transparent in its work.
Antarctic glacier 'thinning fast'
BBC (August 13, 2009)
One of the largest glaciers in Antarctica is thinning four times faster than it was 10 years ago, according to research seen by the BBC. A study of satellite measurements of Pine Island glacier in west Antarctica reveals the surface of the ice is now dropping at a rate of up to 16m a year. Since 1994, the glacier has lowered by as much as 90 m, which has serious implications for sea-level rise.
UN chief wars of dire future wihout climate deal
Reuters (August 11, 2009)
Seoul - Failure to act quickly on climate change could eventually lead to violence and mass unrest as global weather patterns drastically change, U.N. Secretary General Ban Ki-moon said on Tuesday. "If we fail to act, climate change will intensify droughts, floods and other natural disasters," Ban said at a forum near Seoul that came weeks ahead of his own conference on climate change in September.
Climate change seens a threat to U.S. security
New York Times (August 11, 2009)
Washington - The changing global climate will pose profound strategic challenges to the United Sates in coming decades, raising the prospect of military intervention to deal with the effects of violent storms, drought, mass migration and pandemics, military and intellegence analysts say.
Climate, Security and Politics
New York Times (August 9, 2009)
John Broder has a story above the fold in Sunday's Times describing growing concerns of Defense Departement planners over the potential destablizing effect of the building global greenhouse effect. Strategists and planners within the Pentagon have for many years been exploring the military implications of rising temperatures and seas and retreating Arctic sea ice. Bust such studies had until recently been a relatively low priority.