(CNN) – Man-made climate change threatens to stress water resources, challenge crops and livestock, raise sea levels, and adversely affect human health, according to a strongly-worded report from the Obama administration released Tuesday.
The nearly 200-page document on global climate change - released by the White House science adviser and mandated by Congress - does not include new research, but encompasses several recent studies on the effects of global warming over the last half century.
Among the report's key findings are an "unequivocal and primarily human-induced" rise in the earth's temperate of 2 degrees Fahrenheit over the last 50 years, and a projection of more rapidly changing temperatures over the next several decades.
The continuing temperature rise is likely to spur a series of negative consequences for the Earth's energy supply, water, transportation, ecosystems and health, the report also states.
"[The report] tells us why remedial action is needed sooner rather than later, as well as showing why that action must include both global emissions reductions to reduce the extent of climate change and local adaptation measures to reduce the damage from the changes that are no longer avoidable," said John P. Holdren, the White House science adviser.
Among the report's specific predictions are longer and more intense heat waves, increased heavy downpours likely to cause widespread complications such as flooding and waterborne diseases, rising water temperatures, and an increase in wildfires and insect infestations.
The report comes as Congress debates a White House-backed climate change bill that seeks to reduce the United State's greenhouse gas emissions 17 percent by 2020 and 83 percent by 2050 through a so-called "cap and trade" program.
The bill cleared a key House committee vote last month and could be considered by the entire chamber within the next two weeks, House Majority Leader Steny Hoyer said Tuesday.
The bill's future remains unclear in the Senate, where leaders are holding off advancing their own version of the legislation until it clears the lower chamber.