Swedish forestry workers in the southern part of the country have cancelled operations in some areas - because the unseasonably warm weather has left the ground too soft for the heavy machines.

A Duke University-led analysis of available records shows that while the North Atlantic Ocean’s surface waters warmed in the 50 years between 1950 and 2000, the change was not uniform. In fact, the subpolar regions cooled at the same time that subtropical and tropical waters warmed.

Summer nights in Ohio aren't cooling off as much as they used to -- and it's likely a sign of climatic warming across the state, researchers say.

NASA scientists have developed a new climate model that indicates that the most violent severe storms and tornadoes may become more common as Earth’s climate warms.