Either way, it was really hot. In fact, 2013 was the 37th year in a row of above-average global temperatures, according to NOAA.
Scientists have discovered that bees that transmit a crop-wilting virus between plants can become infected by the disease, which could play a role in colony collapse disorder.
Environmentalists are arguing in court that AquAdvantage GMO salmon could be considered "toxic" under Canadian law.
Scientists say baby Jesus' meteorological namesake will become a thundering hulk more often as the climate changes.
Some developing countries have oversized carbon footprints because they manufacture so much of our junk, and their factories are sending smog back our way.
British Prime Minister David Cameron seems desperate to mimic America's natural-gas boom, but plenty of hurdles stand in his way.
A leaked draft of an IPCC report says we might need mass-scale geoengineering to fend off the worst of climate change. Al Gore says that's "insane."
Slaughterhouses that want to sell horsemeat might fight back by filing a claim under the North American Free Trade Agreement.
Gov. Jerry Brown finally declared an emergency, in the midst of the worst drought in California's history.
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