Moves toward phasing out fossil fuel use and gas-powered engines, for example, haven't worked by themselves, but they are more successful when combined with some kind of energy tax or additional cost system, study authors concluded in an exhaustive analysis of global emissions, climate policies and laws.

Nearly half a million people a year die worldwide from heat related deaths, far more than other weather extremes such as hurricanes, and this is likely an underestimate, a new report by 10 U.N. agencies said.

The European climate service Copernicus calculated that Tuesday’s global average temperature was 0.01 Celsius (0.01 Fahrenheit) lower than Monday's all-time high of 17.16 degrees Celsius (62.8 degrees Fahrenheit), which was .06 degrees Celsius hotter (0.1 degrees Fahrenheit) than Sunday.

Catastrophic Canadian warming-fueled wildfires last year pumped more heat-trapping carbon dioxide into the air than India did by burning fossil fuels, setting ablaze an area of forest larger than West Virginia, new research found.

Having a safe climate is becoming more of a human right globally with this week's European court decision that says countries must better protect people from climate change, something warming-hit residents of the Global South long knew, said former Ireland President Mary Robinson.

Climate change is making giant heat waves crawl slower across the globe and they are baking more people for a longer time with higher temperatures over larger areas, a new study finds.

For the ninth straight month, Earth has obliterated global heat records — with February, the winter as a whole and the world's oceans setting new high-temperature marks, according to the European Union climate agency Copernicus.

Joanna Depledge said Kerry will be remembered as “a force for good in the negotiations,” turning the page on low points, such as previous U.S. administrations pulling out — twice — from international climate agreements.

Researchers at the National Oceanic and Atmospheric Administration and NASA figure if they can just inject ice high up in the air, water vapour in the upper atmosphere would get a bit drier and that could counteract a small amount of the human-caused heating.

The new chief of the World Meteorological Organization said it looks to her that the rate of human-caused climate change is accelerating and that warming has triggered more Arctic cold outbreaks in North America and Europe, weighing in on two issues that divide climate scientists.