A Harris Poll survey - conducted online in December on behalf of the American Psychological Association - reports that more than half of U.S. adults (56%) cite climate change as the most important issue facing the world today.
Read MoreOngoing drought - and increasing temperatures - have reduced water flow in the Colorado River, with more dramatic reductions expected. This ongoing, unprecedented event threatens water supplies in cities in the U.S. West and some of the most productive agricultural lands anywhere in the world.
Read More