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  1. New data raises questions about how much the Earth has warmed

    6 days ago · 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.

  2. Global warming | Definition, Causes, Effects, Solutions, & Facts ...

    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 presence of …

  3. 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 broader sense …

  4. 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 burn fossil fuels.

  5. Global Warming - National Geographic Society

    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 climate change refers to …

  6. What Is Global Warming? - National Geographic

    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 gases let...

  7. Global Warming News -- ScienceDaily

    Dec 7, 2025 · Global Warming Research. Learn about the causes and effects of global warming. Consider possible global warming solutions. Read predictions of rising sea levels, coral reef …

  8. Basics of Climate Change - US EPA

    The earth's climate is changing. Multiple lines of evidence show changes in our weather, oceans, ecosystems, and more. The buildup of greenhouse gases in our atmosphere and the warming of the …

  9. Global Warming 101 - Definition, Facts, Causes and Effects of ... - NRDC

    Jul 6, 2023 · What is global warming? Global warming causes, effects, extreme weather, facts, and relation to climate change.

  10. What is global warming? - The Institute for Environmental Research …

    Jun 17, 2025 · Global warming isn’t just a feeling; it’s a scientifically measurable and observable phenomenon. The core principle rests on the greenhouse effect. The Earth receives energy from the …