Sharp drops in global temperatures helped seal the fate of three extinct hominin species, including our close relatives, the Neanderthals, according to thousands of archaeological specimens and a model of past climate conditions.

Marine ecologist Jeroen Ingels discusses what is known about ice shelf loss at the southern pole and how those changes are affecting local ecosystems.

Flames and smoke have killed dozens of people over the past month and burned hundreds of thousands of acres, causing massive disruptions.

A new study finds reductions in greenhouse gases are insufficient to substantially slow warming, and the authors argue that to continue the benefits of reduced emissions, policymakers will need to adopt green economic recovery strategies.

Satellite images of penguin poop reveal eight entirely new colonies and confirm the existence of another three first reported in the 1960s.

The possibly record-breaking temps follow the warmest winter on record in the region.

Terrestrial insect populations decreased while freshwater populations increased, and though the results are more nuanced than those of previous observations of widespread decline, experts say they are cause for concern.

The decline in total occupied forest may not equate to an overall loss in butterfly numbers, but scientists are still concerned that their populations are suffering.

Agency documents, including scientific analyses, included language that misrepresents the uncertainty surrounding climate change, according to a New York Times investigation.