WASHINGTON (AP) — A draft federal science report on the effects of global warming breaks down how climate change has already hit different regions of the United States. It also projects expected changes by region.
OVERALL (contiguous 48 states)
—The annual average temperature is already 1.18 degrees warmer the last 30 years than it was from 1901 to 1960, with daytime highs 1 degree warmer and nighttime lows 1.35 degrees higher.
—If carbon pollution continues unabated, temperatures are projected to rise another 4.83 degrees by mid-century and 8.72 degrees by the end of the century, or a few degrees less if emissions are cut somewhat.
NORTHEAST (Maine, Vermont, New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, West Virginia and Washington, D.C.)
—The annual average temperature, which has already risen about 1.37 degrees since 1901-1960, is expected to go up another 5.09 degrees by mid-century and 9.11 degrees by the end of the century if carbon pollution continues unabated. If emissions are somewhat controlled, temperatures would go up another 3.98 degrees by mid-century and 5.27 degrees by late century.
—Extreme precipitation — rain and snow — has already gone up 17 percent compared with the first half of the 20th century and is projected to go up another 22 percent by the end of the 21st century if carbon pollution continues unabated. If carbon dioxide emissions are somewhat reduced, it would only go up 14 percent.
—The Northeast heat wave of July 2012 was made worse because of man-made climate change.
SOUTHEAST (Virginia, Kentucky, North Carolina, South Carolina, Tennessee, Arkansas, Louisiana, Mississippi, Alabama, Georgia and Florida)
—The annual average temperature has only gone up about 0.4 degrees since 1901-1960, the lowest of any region in the nation. It is projected to rise another 4.3 degrees by mid-century and 7.72 degrees by the end of century, if carbon pollution continues unabated. If carbon emissions are somewhat reduced, the annual temperature would rise another 3.4 degrees by mid-century and 4.43 degrees by late century.
—Extreme rain has already increased by 8 percent compared with the first half of the 20th century and is projected to go up another 21 percent by the end of the 21st century if carbon pollution continues unabated. If carbon pollution is somewhat reduced, it would only go up 13 percent.
MIDWEST (Minnesota, Michigan, Wisconsin, Ohio,…