Effects of global warming

Effects of global warming

The impacts of climate change across world population will not be distributed evenly (Smith et al., 2001:957). Some regions and sectors are expected to experience benefits while others will experience costs. With greater levels of warming (greater than 2–3°C by 2100, relative to 1990 temperature levels), it is very likely that benefits will decline and costs increase (IPCC, 2007b:17). Low- and less-developed areas are probably at the greatest risk from climate change (Schneider et al.., 2007:781). With human systems, potential for climate change impacts is considerable, although the costs of adaptation are largely unknown and potentially large. In a literature assessment, Schneider et al.. (2007:792) concluded, with high confidence, that climate change would likely result in reduced diversity of ecosystems and the extinction of many species.

This article is about the effects of and The effects, or impacts, of climate change may be physical, ecological, social or economic. Evidence of observed climate change includes the instrumental temperature record, rising and decreased snow cover in the According to IPCC (2007a:10), "[most] of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in [human concentrations". It is predicted that future climate changes will include further global warming (i.e., an upward n global mean temperature), sea level rise, and a probable increase in the frequency of some Signatories of the have agreed to implement policies .

designed to reduce their emissions of greenhouse gases.