PIERRE, SOUTH DAKOTA--(Marketwire - Sept. 29, 2011) - As the Department of State proceeds with its 90-day consultation period to determine if TransCanada Corporation's (TSX:TRP) (NYSE:TRP) (TransCanada) proposed Keystone XL pipeline is in the U.S. national interest, an independent ec...

CALGARY, ALBERTA--(Marketwire - Jan. 18, 2012) - TransCanada Corporation (TSX:TRP) (NYSE:TRP) (TransCanada) announced today it has received the U.S. Department of State's decision that the Presidential Permit for Keystone XL has been denied. "This outcome is one of the scena...

Given the prominence of beef in our diets and cultures, humankind probably won’t curb its consumption anytime soon in a way that results in a major drop in methane emissions. However, there are some creative and productive solutions for mitigating the environmental impact of cattle. One involves harnessing their prodigious digestive systems to turn out another source of energy—a source capable of supplying millions of cubic feet per day of natural gas to vehicles, homes, and businesses, not unlike a gas field trapped deep beneath the Earth’s surface.

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