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  •  Climate change - Forests - Mountain pine beetle (0+ / 0-)
    The current outbreak of mountain pine beetles is ten times larger than previous outbreaks. Huge swaths of central British Columbia (BC) and parts of Alberta have been hit badly, with over 40 million acres (160,000 km2) of BC's forests affected....The outbreaks may be a consequence of global warming. Previously, cold spells had killed off bark beetles which are now attacking the forests. The longer breeding season is another factor encouraging beetle proliferation.
    http://en.wikipedia.org/...
    B.C.'s pine beetle kill map through 2011 http://www.for.gov.bc.ca/...

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