Exhausting the atmosphere Above, heat trapping fuel exhaust from cars and trucks may stay in the atmosphere for decades. Belch One of the least-efficient ways to produce electricity, coal-fired power plants also contribute to the greenhouse effect. Save the trees, please 25% of the Amazon rain forest could be gone by 2050, reducing oxygen while raising amounts of heat trapping carbon dioxide.       Weird weather we're having As the Earth warms, scientists predict severe weather changes like those resulting in Hurricane Katrina in 2005. Pity the polar bears Polar habitats are already threatened by melting ice floes and glaciers. Bye-bye coral reefs? Meanwhile, higher water temps and rising CO2 levels threaten life-sustaining coral reefs.       Get the mosquito repellant... As the world's water levels rise, insect populations and water- borne diseases will also likely rise along with them. ... and the row boats Entire coastal areas, like those in South Florida (shown in red) may become flooded as a result of higher sea levels. Feast or famine Changing weather patterns may benefit new farm regions with longer growing periods as traditional ones dry up. More images of global warming around the Web: World View of Global Warming Climate Change: Pictures of a Warming World also see in Society - Go Green -> Alternative Energy | Greenhouse Gases