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Theories Tying Human Health, Climate Gain Ground

Physician Paul Epstein has been trying to get people interested in climate change since the early 1990s. And now, finally, people are listening to his claims that climate change could lead to all sorts of health problems, everything from more allergies to more infectious diseases to more starvation. Some climate experts accuse him of overstating his case.

Epstein says that given what would happen if he didn't treat a patient at the beginning of an illness, if we don't do something to help the Earth now, it may be too late.

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