Monday, August 31, 2009

Nitrous Oxide Now Top Ozone-depleting Emission

ScienceDaily (Aug. 28, 2009)
Nitrous oxide has now become the largest ozone-depleting substance emitted through human activities...


Ag. fertilizers are a huge
contributor. Govt. of AB photo

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Climate change past the point of no return, UN says, as worst impacts are now unavoidable

CBC  News Global warming guaranteed to exceed 1.5 C limit and stay that way for 'many, many decade s.'           The Thunderhill Lak...