Warming oceans killing coral reefs

Coral reefs around the world are experiencing a massive die-off that could be the worst in recorded history, a new study warns. Stoked by climate change and a powerful El Nino, record-high ocean temperatures have triggered the global event, which began last year and is expected to destroy 5 percent of the world’s coral reefs by 2016. The temperature changes […]

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Marijuana Usage

College graduates account for only about 17 percent of marijuana use. About 76 percent is consumed by adults who never attended college or dropped out. “Most of the marijuana market is more Walmart than Whole Foods,” says Carnegie Mellon University professor Jonathan Caulkins, author of a new analysis of weed use.

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