By National Research Council, Division on Earth and Life Studies, Board on Atmospheric Sciences and Climate, America's Climate Choices: Panel on Advancing the Science of Climate Change
Weather switch is going on, is prompted principally via human actions, and poses major hazards for--and in lots of situations is already affecting--a wide diversity of human and common structures. The compelling case for those conclusions is supplied in Advancing the technology of weather switch, a part of a congressionally asked suite of reviews referred to as America's weather offerings. whereas noting that there's regularly extra to profit and that the medical strategy is rarely closed, the e-book exhibits that hypotheses approximately weather swap are supported via a number of strains of facts and feature stood company within the face of great debate and cautious assessment of other motives. As selection makers reply to those dangers, the nation's clinical firm can give a contribution via learn that improves figuring out of the reasons and effects of weather swap and likewise turns out to be useful to determination makers on the neighborhood, local, nationwide, and overseas degrees. The publication identifies judgements being made in 12 sectors, starting from agriculture to transportation, to spot judgements being made based on weather swap. Advancing the technological know-how of weather switch demands a unmarried federal entity or application to coordinate a countrywide, multidisciplinary study attempt geared toward bettering either realizing and responses to weather swap. Seven cross-cutting learn issues are pointed out to help this medical firm. furthermore, leaders of federal weather learn should still redouble efforts to set up a complete weather gazing process, increase weather versions and different analytical instruments, put money into human capital, and increase linkages among examine and judgements through forming partnerships with action-oriented courses.
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Extra info for Advancing the Science of Climate Change (National Research Council)
The burning of fossil fuels—coal, oil, and natural gas—for energy is the single largest human driver of climate change, but agriculture, forest clearing, and certain industrial activities also make significant contributions. • Natural climate variability leads to year-to-year and decade-to-decade fluctuations in temperature and other climate variables, as well as substantial regional differences, but cannot explain or offset the long-term warming trend. • Global warming is closely associated with a broad spectrum of other changes, such as increases in the frequency of intense rainfall, decreases in Northern Hemisphere snow cover and Arctic sea ice, warmer and more frequent hot days and nights, rising sea levels, and widespread ocean acidification.
SOURCE: Marian Koshland Science Museum of the National Academy of Sciences. fuels—coal, oil, and natural gas—for energy. The increasing concentrations of GHGs are amplifying the natural greenhouse effect, causing Earth’s surface temperature to rise. Human activities have also increased the number of aerosols (small liquid droplets or particles suspended in the atmosphere). Aerosols have a wide range of environmental effects, but on average they increase the amount of sunlight that is reflected back to space, a cooling effect that offsets some, but not all, of the warming induced by increasing GHG concentrations.
A recent assessment of these data and the techniques used to analyze them concluded that the past few decades have been warmer than any other comparable period for at least the last 400 years, and possibly for the last 1,000 years or longer (NRC, 2006b). 32 Copyright © National Academy of Sciences. All rights reserved. html What We Know About Climate Change The Climate System Exhibits Substantial Natural Variability Earth’s climate varies naturally on a wide range of timescales, from seasonal variations (such as a particularly wet spring, hot summer, or snowy winter) to geological timescales of millions or even billions of years.
Advancing the Science of Climate Change (National Research Council) by National Research Council, Division on Earth and Life Studies, Board on Atmospheric Sciences and Climate, America's Climate Choices: Panel on Advancing the Science of Climate Change