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Viewing posts by Peter Donovan

Canadian prairie soils: historical perspective by Henry Janzen

Posted by Peter Donovan 16 years, 7 months ago

A fascinating and detailed paper by Henry Janzen of the Lethbridge research station in Alberta. Early researchers noted a loss of organic matter and nitrogen availability upon cultivation.


Can we unscramble the egg?

Posted by Peter Donovan 16 years, 7 months ago

If we quit adding carbon to the atmosphere, it won't stop global warming anytime soon. That's why people are hoping that there are ways to get the extra carbon out of the atmosphere, and that we can put these billions of tons of it somewhere safe.


Australia

Posted by Peter Donovan 16 years, 8 months ago

Australia is currently the world leader in the recognition of the soil carbon opportunity, and the development of carbon markets that include soil carbon.


Offsets or ecosystem services?

Posted by Peter Donovan 16 years, 8 months ago

In the United States, the current carbon market at the Chicago Climate Exchange buys offsets or "pollution credits" as some have called them. The amount of carbon sequestration purchased is directly related to emissions of carbon into the atmosphere by industries, for example. As the trading price of carbon offsets increases, presumably emissions will go down, but then so will the purchase of offsets.


A new water paradigm

Posted by Peter Donovan 16 years, 11 months ago

Four Slovakians and a Czech, some connected with the People and Water NGO in Slovakia, have written a short, powerful book on the water cycle. Water for the Recovery of the Climate---A New Water Paradigm is available in English from http://waterparadigm.org as a 15 MB, 94-page pdf (under “Downloads“).