Rising ocean levels could eventually cause worldwide flooding of coastal areas, forcing people and wildlife to migrate inland. Many experts believe global warming is behind the upswing in hurricane activity, and they also predict global warming will cause a dramatic increase in excessive precipitation in some areas and severe drought in others, resulting in floods, crop failures, and a rising number of forest fires and land slides.
Many of the world's most knowledgeable climate-change scientists forecast that the earth's temperature will rise from 1.44 to 6.3º F by the year 2100 if we don't take steps to reduce greenhouse gases. An increase of 1 to 3.6º F will occur even if we do act, because many gases have already been released.
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