Title: Weather and Climate - Climate and Weather | HowStuffWorks
Headings: Weather and Climate
How Global Warming Works
Weather and Climate
Natural Changes in Climate

Content: Precipitation has increased in eastern regions of the Americas, northern Europe and parts of Asia; other regions such as the Mediterranean and southern Africa have experienced drying trends. Westerly winds have been growing stronger. Droughts are more intense, have lasted longer and covered larger areas than in the past. There have been significant changes in extreme temperatures -- hot days and heat waves have become more frequent while cold days and nights have become less frequent. While scientists have not observed an increase in the number of tropical storms, they have observed an increase in the intensity of such storms in the Atlantic correlated with a rise in ocean surface temperatures. Natural Changes in Climate
It can take the Earth thousands of years to warm up or cool down just 1 degree when it happens naturally. In addition to recurring ice-age cycles, the Earth's climate can change due to volcanic activity, differences in plant life, changes in the amount of radiation from the sun, and natural changes in the chemistry of the atmosphere. 1 2 3 …
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