After the winds and water of Typhoon Haiyan abated, grief and hunger swept though the Philippines, along with the outbreak of disease. Are monster storms the new normal in a warmer world? Some scientists say yes, and if so, climate change is already producing real effects on human life and health.

A hotter planet will serve up casualties from natural disasters, but also higher rates of asthma, allergies and an increase in mosquito-borne diseases. It is, according to one researcher, the greatest challenge of our time, straining health care efforts worldwide. But could a “medical Marshall Plan” save us?

Also, why the conservative estimates from the U.N.‘s climate change group don’t help people prepare for worst-case scenarios. And, a controversial approach to saving our overburdened planet: a serious limit on population growth.

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