Topic: global warming

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global warming

The Columbia Encyclopedia, Sixth Edition
global warming the gradual increase of the temperature of the earth's lower atmosphere as a result of the increase in greenhouse gases since the Industrial Revolution . The temperature of the atmosphere near the earth's surface is warmed through a natural process called the greenhouse effect. Visible, shortwave light comes from the sun to the earth, passing unimpeded through a blanket of thermal, or greenhouse, gases composed largely of water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Infrared radiation reflects off the planet's surface toward space but does not easily... Read more
weather modification
Britannica Concise Encyclopedia

Deliberate or inadvertent alteration of atmospheric conditions by human activity, sufficient to modify the weather on a local or regional scale. Deliberate alterations include covering plants to keep them warm at night, seeding clouds to induce or augment precipitation, and firing silver-iodide ...

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climate change
The Oxford Pocket Dictionary of Current English

cli·mate change • n. long-term, significant change in the climate of an area or of the earth, usually seen as resulting from human activity. Often used as a synonym for global warming .

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1958 - Global Warming - It's NOT newly known