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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Renewables offer quick fix for US emissions

The US could reduce greenhouse gas emissions from electricity generation by 80% below 1990 levels within 15 years just by using renewable sources such as wind and solar energy, according to a former government research chief. The nation could do this using only technologies available right now, and by introducing a national grid system connected by high voltage direct current […]

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