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Health Effects of Climate Change The prevalence of some diseases and other threats to human health depend largely on local climate. Extreme temperatures can lead directly to loss of life, while climate-related disturbances in ecological systems, such as changes in the range of infective parasites, can indirectly impact the incidence of serious infectious diseases. In addition, warm temperatures can increase air and water pollution, which in turn harm human health.
Learn the Issues: Climate Change | Learn the Issues | US EPA
Warming more and faster — The rate of warming of the Earth’s average surface temperature over the last 50 years was nearly twice the rate for the last 100 years. Over the past 100 years, the Earth’s average surface temperature rose by around 0.74°C. If atmospheric concentrations of the dominant greenhouse gas, carbon dioxide, were to double compared to pre-industrial level, this would lead to an average warming of around 3°C. The late 1990s and early 21st century had the warmest years since modern records began. Arctic sea ice has been shrinking on average by 2.7 per cent per decade.
Gateway to the UN System's Work on Climate Change - The Earth's Changing Climate
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U.S. DOE Energy Efficiency and Renewable Energy (EERE) Home Page
Marine species affected by climate change include plankton - which forms the basis of marine food chains - corals, fish, polar bears, walruses, seals, sea lions, penguins, and seabirds. The Intergovernmental Panel on Climate Change predicts a further rise of between 1.4°C and 5.8°C by the end of the century. Climate change could therefore well be the knock-out punch for many species which are already under stress from overfishing and habitat loss.
WWF - Impacts of climate change on the marine environment
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