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Global warming - Wikipedia
Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth's climate system and its ...
Global Warming: 2018 Articles, Facts, Causes & Effects
The latest articles and facts about global warming and its causes, plus a look at the effects of climate change: rising sea level and severe weather.
Global warming - Britannica.com
Global warming: Global warming, the phenomenon of rising average air temperatures near Earth’s surface over the past 100 to 200 years. Earth’s climate has changed ...
Global Warming | Union of Concerned Scientists
The planet is warming and human activity is the primary cause. Learn about the science and consequences of global warming -- and the practical solutions we have at ...
What Is Global Warming? | Global Warming Facts
Global warming — the gradual heating of Earth's surface, oceans and atmosphere — is one of the most vexing environmental issues of our time.
Global Warming 101 | NRDC
Q: What is global warming? A: Here's a simple definition of global warming. (And yes, it's really happening.) Over the past 50 years, the average global temperature ...