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The global combined land and ocean-surface temperature was 1.67 degrees Fahrenheit above the 20th-century average, according to NOAA, the hottest in 142 years of record-keeping.

The National Climate Data Center says that last month was the fourth-warmest January on record and the 347th consecutive month of temperatures above the 20th century average.

The new target was submitted to the U.N. Framework Convention on Climate Change Tuesday. It is part of a plan for a new international treaty to be hammered out in December in Paris.

Nearly a dozen states, including Massachusetts, are collaborating on the Transportation & Climate Initiative, a regional program that would curb…

The White House transition team told about half of the Environmental Protection Agency officials scheduled to attend an Alaska climate and environment conference to stay home. The EPA cites travel costs, but some of those kept away live right in Anchorage.

Scientists who assess threats each year and express their concerns using the clock are worried about President Trump's unpredictability and governments' failure to trust each other.

Another above-average hurricane season is in the forecast, with 17 named storms and four major hurricanes. Researchers say the growing number of intense storms is due to climate change.

The ozone layer is a thin shield in the stratosphere that protects humans and the environment from harmful levels of the sun's ultraviolet radiation.

The finding comes as New England temperatures are already warming faster than national averages from human-driven climate change, according to the U.S. Global Change Research Program.

This summer has already been awfully hot in the southern Plains and the Gulf Coast. Now, a large portion of the U.S. will face a prolonged period of dangerous heat.