Appearing on CNN today, renowned physicist Michio Kaku explained why—contrary to what we might expect—global warming often results in more snow and rain.
Simply put, warmer air around the tropics results in more water evaporating into the air—only to fall somewhere else as rain. Snow storms occur when warm, moisture-laden air currents collide with frigid arctic air; then the water droplets freeze and fall as snow.
For decades, scientists have predicted that, as the average temperature of the earth rises, storms of all kinds would become more frequent and more severe.
They were right. Just ask anyone from New Orleans, Bangladesh, or New England circa 2011.