If you want a taste of the brutal new climate to come, don’t think of Hurricane Katrina or Superstorm Sandy. Look to Phoenix, where if the power goes out, people fry.
A three-year study by the Department of the Interior has concluded that a hotter, drier climate is threatening the water supply for 40 million people who depend on the Colorado River.
Turns out polar bears aren’t the only land mammals struggling with global warming. Many of the world’s most-used rivers, from the Colorado to the Ganges, have been losing water for the last 50 years. So, in addition to coping with floods, storms, deserts and mass extinction, we could all die of thirst. Happy Earth Day.