The seas in which corals and other calcifying species dwell are turning acidic, their pH slowly dropping as Earth's oceans acidify in response to increased carbon dioxide...
Video: Global Warming's Six Americas Last Updated on 2013-07-11 15:16:38
Anthony Leiserowitz, director of the Yale Project on Climate Change Communication, discusses the divergent views of Americans over climate change.
This help to clear the idea of what actually people think about climate change and how can we involve people in this issue.
Watch >> Global Warming's Six Americas
Can be used in any classes where we talk about people and society on climate change.
Simple questions can be asked on the topic to know the student understanding
Ocean acidification troublesLast Updated on 2012-08-09 00:00:00
The seas in which corals and other calcifying species dwell are turning acidic, their pH slowly dropping as Earth's oceans acidify in response to increased carbon dioxide in the atmosphere.
Trouble in Paradise:
Ocean Acidification This Way Comes
Sustainability of tropical corals in question, but some species developing survival mechanisms
The following Discovery article is part two in a series on the National Science Foundation's Science, Engineering and Education for Sustainability (SEES) investment. Visit parts one, three, four, five, six and seven in this series.
The following is part five in a series on the National Science Foundation's Long-Term Ecological Research (LTER) Network. Visit parts one, two, three, four, six, seven, eight and nine in this series.
Double, double toil and trouble;
Fire burn, and caldron bubble.
—Shakespeare,... More »
Carbon dioxide milestone in ArcticLast Updated on 2012-06-03 00:00:00
Carbon dioxide atmospheric concentrations at Barrow, Alaska, reached 400 parts per million this spring—the first time a monthly average measurement for the greenhouse gas attained the 400 ppm mark in a remote location.
NOAA: Carbon dioxide levels
reach milestone at Arctic sites
NOAA cooperative measurements in remote, northern sites hit greenhouse gas milestone in April
The concentration of carbon dioxide in the atmosphere of Barrow, Alaska, reached 400 parts per million (ppm) this spring, according to NOAA measurements, the first time a monthly average measurement for the greenhouse gas attained the 400 ppm mark in a remote location.
Carbon dioxide (CO2), emitted by fossil fuel combustion and other human activities, is the most significant greenhouse gas contributing to climate change.
“The northern sites in our monitoring network tell us what is... More »
Targeting other climate change gasesLast Updated on 2011-08-04 00:00:00NOAA study: Slowing climate change by
targeting gases other than carbon dioxide
The direct warming influence of all long-lived greenhouse gases in the atmosphere today attributable to human activities. CO2’s warming influence of 1.7 watts/m2 is equivalent to the heat from nearly 9 trillion 100-watt incandescent light bulbs placed across Earth’s surface. The combined influence of the non-CO2 greenhouse gases is equivalent to the heat from about 5 trillion bulbs. The category “other”includes a few very long-lived chemicals that can exert a climate influence for millennia.
Download image here. (Credit: NOAA)
Carbon dioxide remains the undisputed king of recent climate change, but other greenhouse gases measurably contribute to the problem. A new study, conducted by NOAA scientists and published online today in Nature, shows that cutting emissions... More »
EPA Regulation of Greenhouse Gases: Congressional Responses and OptionsLast Updated on 2011-04-08 00:00:00
The Environmental Protection Agency’s promulgation of an “endangerment finding” for greenhouse gas (GHG) emissions in December 2009, and its subsequent promulgation of GHG emission standards for new motor vehicles on April 1, 2010, have raised concerns among some in Congress. As a direct result of these first steps, the agency is now proceeding to control GHG emissions from stationary sources as well, including power plants, manufacturing facilities, and others. Stationary sources account for 69% of U.S. emissions of greenhouse gases. If the United States is to reduce its total GHG emissions, as President Obama has committed to do, it will be necessary to address these sources.
EPA’s regulations limiting GHG emissions from new cars and light trucks have triggered at least two other Clean Air Act (CAA) provisions affecting stationary sources of... More »
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