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no description
available
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2003 |
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The National
Oceanic and Atmospheric Administration (NOAA) reports that atmospheric
concentrations of methane, a potent greenhouse gas, have begun to level
out after two centuries of increases. Methane levels have been constant
for four years now, but scientists are not certain why the steady
increases of the gas in the atmosphere since the dawn of the industrial
age have stopped. One theory is that a decrease in fossil fuel production
in the former Soviet Union may account for the decline. About 70 percent
of methane emissions are connected with human activities -- the burning of
fossil fuels, intestinal gas from livestock and farm animals, and the
cultivation of rice paddies. (14KB PDF file)
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The Climate
and Carbon Research (CCR) activity in the Center for Computational Science
at ORNL is a scientific research center that focuses on the computational
aspects of how the global climate and carbon systems interact with natural
and anthropogenic processes. The goal of CCS-CCR is to serve as a
world-class climate and carbon research center and be a focal point for
the computational climate and carbon simulation community.
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The
Environmental Protection Agency (EPA) provides an excellent overview of
the problem of global warming. The science of climate change is presented
along with the potential impacts of global warming as well as strategies
to adapt to, or mitigate, those potential impacts.
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2003 |
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You can think
of this web site as a window into the world of scientific research. In
this primer, you'll find a general discussion of the physical processes
underlying the earth's climate, an outline of the kinds of data that may
shed light on how the climate is changing - and the role of human activity
in these changes -and a description of some of the questions and
uncertainties that researchers continue to explore.
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Links
