Global warming is likely to bring many changes to the nation. The United States as a whole is in a strong economic position to adapt to many of these changes, but adaptation is often expensive, not always possible or successful, and during transitions ecosystems, communities, and individuals could suffer. Moreover, national impact summaries disguise local dislocations and disruptions to the ways we live, work and recreate.
Climate change adds a serious stress to our already threatened resources and treasured places.
Overall impact statements also mask significant opportunities. To minimize the negative changes and make the most of the positive changes we need to take a close look at how climate change will affect each region. According to the Assessment, this rise will be associated with more extreme precipitation and greater evaporation leading to more frequent extremes of both very wet and very dry conditions. Based on projections developed for the national assessment as an underlying set of assumptions, scientists expect that climate change of this magnitude would increase the number of heat-related illnesses and mortality suffered by the population. In addition, respiratory and cardiovascular illnesses may be exacerbated due to higher temperatures and poor air quality.