`` It 's not just a problem for the future , '' said Jane Lubchenco , administrator of the National Oceanic and Atmospheric Administration . Man-made climate change is adversely affecting the U.S. , says a federal report . The National Climate Assessment released Tuesday by the White House Office of Management and Budget predicts that global temperatures will rise between 1.5 to 4.5 degrees Fahrenheit over this century — with most of those increases occurring in the Document is released by White House science adviser and mandated by Congress . Report 's predictions : Hotter heat waves , more flooding and an increase in wildfires .
Man-made climate change is adversely affecting the U.S. , says a federal report . The National Climate Assessment released Tuesday by the White House Office of Management and Budget predicts that global temperatures will rise between 1.5 to 4.5 degrees Fahrenheit over this century — with most of those increases occurring in the Document is released by White House science adviser and mandated by Congress . Report 's predictions : Hotter heat waves , more flooding and an increase in wildfires .