These guys are gassy, and their emissions are contributing to global warming.
April 12, 2014 Methane from livestock accounts for a huge portion of agricultural greenhouse gas emissions, according to a UN report. But reducing global meat consumption isn't necessarily the answer to the problem.
An artist's imagination Saturn's orange moon Titan.
December 18, 2012 Sub-surface water oceans and surface seas of liquid methane. The solar system just outside our doorstep is rich with possibilities. It's a voyage that astronaut-sailors will, one day, embark upon.
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