'Big issue' documentaries don't always change our behaviour

Climate change has returned to the big screen with the release of Al Gore's An Inconvenient Sequel: Truth to Power. It's the follow-up to his Oscar-winning documentary from 2006, An Inconvenient Truth, which raised awareness ...

Climate: Carbon 'offsets' rise 4% in 2012

Trade in carbon offsets, a voluntary means of reducing one's footprint in global-warming gases, rose by four percent in volume terms last year as the market price of carbon collapsed, a report said on Thursday.

Study evaluates strategies for generating electricity from hog waste

(Phys.org) —Capturing methane gas from hog farms and piping it into existing natural gas pipelines may be a cost-effective way to meet North Carolina's Renewable Energy and Energy Efficiency Portfolio Standard (REPS), according ...

'Poop to power' program turns pig manure into sustainable energy

The nearly 9,000 hogs at Loyd Ray Farms in Yadkin County, N.C., produce 400,000 gallons of manure every week. Since the waste had too high a nitrogen content to be used as fertilizer, owner Loyd Bryant used to pump that waste ...

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