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Global warming - Wikipedia
Global warming is a long-term rise in the average temperature of the Earth's climate system, an aspect of climate change shown by temperature measurements and by multiple effects of the warming. Though earlier geological periods also experienced episodes of warming, the ...
global warming | Definition, Causes, & Effects ...
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 over various timescales since the dawn of geologic time, and the force of human activities since the Industrial Revolution has been woven into the fabric of climate change.
What is global warming, facts and information?
We often call the result global warming, but it is causing a set of changes to the Earth's climate, or long-term weather patterns, that varies from place to place. While many people think of ...
Global Warming 101 - Definition, Facts, Causes and Effects ...
A: Global warming occurs when carbon dioxide (CO2) and other air pollutants and greenhouse gases collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth ...
What Is Global Warming? | Global Warming Facts
The globe is heating up. Both land and oceans are warmer now than record-keeping began in 1880, and temperatures are still ticking upward. This temperature rise, in a nutshell, is global warming.
NASA Climate - Official Site
Vital Signs of the Planet: Global Climate Change and Global Warming. Current news and data streams about global warming and climate change from NASA.
Global Warming | Monitoring References | National Centers ...
El Niño and Global Warming. El Niños are not caused by global warming. Clear evidence exists from a variety of sources (including archaeological studies) that El Niños have been present for thousands, and some indicators suggest maybe millions, of years.
What is global warming? | What's Your Impact
Global warming is the current increase in temperature of the Earth's surface (both land and water) as well as it's atmosphere. Global warming is caused by the increase of greenhouse gases in our atmosphere.