Apr 14, 2015 A report suggesting limitations on red meat consumption stirs up controversy.
Mar 27, 2015 The menu at Dan Barber's restaurant features dishes made only from food waste.
Mar 13, 2015 Hundreds of tons of shredded money are burned each year to generate electricity.
Mar 11, 2015 The expansion of solar power to replace nuclear has hit a wall: The capacity of Japan's grid.
Mar 9, 2015 There's not much evidence that Daylight Savings Time actually cuts down on electricity use.
Mar 4, 2015 Huge amounts of wastewater must be disposed of, much of it in deep wells.
Mar 2, 2015 Almonds don't just take a lot of water to grow; they take a lot of bees, too
Feb 2, 2015 ExxonMobil profits are down 21 percent, so company curtails jobs and investments.
Jan 23, 2015 2014 was the hottest year on record. What's next for climate change policy and economics?