
New data raises questions about how much the Earth has warmed
Dec 15, 2025 · The severity of global warming has long depended on your frame of reference — on what temperature you think was normal for the Earth before humans began changing it.
Global warming | Definition, Causes, Effects, Solutions ...
Nov 24, 2025 · Modern global warming is the result of an increase in magnitude of the so-called greenhouse effect, a warming of Earth’s surface and lower atmosphere caused by the …
Climate change - Wikipedia
Present-day climate change includes both global warming —the ongoing increase in global average temperature —and its wider effects on Earth's climate system. Climate change in a …
Global Warming - NASA Science
Jun 3, 2010 · Global warming is the unusually rapid increase in Earth’s average surface temperature over the past century primarily due to the greenhouse gases released as people …
What is global warming, facts and information | National ...
Climate change has accelerated the rate of ice loss across the continent. The "greenhouse effect" is the warming that happens when certain gases in Earth's atmosphere trap heat. These …
Climate change impacts - National Oceanic and Atmospheric ...
Nov 18, 2025 · Climate change affects the environment in many different ways, including rising temperatures, sea level rise, drought, flooding, and more. These events affect things that we …
Global Warming - National Geographic Society
Apr 8, 2025 · People often use the terms “global warming” and “climate change” interchangeably, but they are different. Global warming refers to Earth’s rising average temperature, while …