Not exact matches
Project Learning Tree and the University
of Florida developed this secondary module to help educators in the Southeast teach about climate change
impacts on forest ecosystems, the role
of forests in sequestering carbon, and strategies for reducing
greenhouse gas emissions and adapting to changing
climatic conditions.
The new revision 3 (Easterling et al. 1996) data represent the best available data from the United States for analyzing long - term climate trends on a regional scale and may be used for studies attempting to determine the
climatic impacts of increased concentrations
of greenhouse gases.
Carbon dioxide is the most important
greenhouse gas directly produced by human activities.Present emissions
of carbon dioxide (CO2) account for about half the short - term
climatic impact of man - made
greenhouse gases (GHGs).
Quantitative implications
of the secondary role
of carbon dioxide climate forcing in the past glacial - interglacial cycles for the likely future
climatic impacts of anthropogenic
greenhouse -
gas forcings (arXiv: 0707.1276, July 2007)-- Soon, Willie
We further recognize the need to reduce the global emission
of greenhouse gases by 80 % by mid-century at the latest, in order to avert the worst
impacts of global warming and to reestablish the more stable
climatic conditions that have made human progress over the last 10,000 years possible.
In terms
of greenhouse agents, the main conclusions from the WGI FAR Policymakers Summary are still valid today: (1) «emissions resulting from human activities are substantially increasing the atmospheric concentrations
of the
greenhouse gases: CO2, CH4, CFCs, N2O»; (2) «some
gases are potentially more effective (at
greenhouse warming)»; (3) feedbacks between the carbon cycle, ecosystems and atmospheric
greenhouse gases in a warmer world will affect CO2 abundances; and (4) GWPs provide a metric for comparing the
climatic impact of different
greenhouse gases, one that integrates both the radiative influence and biogeochemical cycles.
Worsening
climatic and coastal
impacts are almost inevitable unless the world's industrial nations significantly reduce emissions
of greenhouse gases.