and will continue to affect these regions, according to the Third 3 and Fourth 4 National Climate Assessment Reports, released by the U.S. Some of the long-term effects of global climate change in the United States are as follows, according to the Third and Fourth National Climate Assessment Reports:Ĭhange Will Continue Through This Century and BeyondĪn interactive exploration of how global warming is affecting sea ice, glaciers and continental ice sheets worldwide.īelow are some of the impacts that are currently visible throughout the U.S. 'Taken as a whole,' the IPCC states, 'the range of published evidence indicates that the net damage costs of climate change are likely to be significant and to increase over time.' 1- 2 Future Effects Net annual costs will increase over time as global temperatures increase. The IPCC predicts that increases in global mean temperature of less than 1.8 to 5.4 degrees Fahrenheit (1 to 3 degrees Celsius) above 1990 levels will produce beneficial impacts in some regions and harmful ones in others. The Intergovernmental Panel on Climate Change (IPCC), which includes more than 1,300 scientists from the United States and other countries, forecasts a temperature rise of 2.5 to 10 degrees Fahrenheit over the next century.Īccording to the IPCC, the extent of climate change effects on individual regions will vary over time and with the ability of different societal and environmental systems to mitigate or adapt to change. Scientists have high confidence that global temperatures will continue to rise for decades to come, largely due to greenhouse gases produced by human activities.

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