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Our American society is in the midst of an obesity epidemic. At the same time, we're an image-obsessed society, demanding physical perfection from ourselves. We've developed a horrible fat-skinny dichotomy. This can be seen in the fact that there are more obese people than overweight people.

Being overweight means being 1-20 pounds over your target weight. And studies have shown that people who carry a few extra pounds on their body actually have a better chance of surviving a serious illness than skinny people. Overweight people still run a greater risk of heart disease. I'm illustrating this point to stress the fact that no one is demanding that everyone have perfect bodies. A little extra weight isn?t that bad, even though you may be self conscious about it.

Obesity, on the other hand, is just plain bad for your health. It is also bad for the planet. Some scientists are claiming that obesity contributes to global warming. Here are their reasons.