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Canada: Cracks in the house? Climate change dries the ground we stand on
Posted by Ottawa Citizen: Kelly Egan on May 12th, 2013
Ottawa Citizen: We learn from Saturday’s paper that carbon dioxide, the main greenhouse gas, is at its highest concentration in the atmosphere in three million years.
Over shouts of “We’re No. 1!”, it might be opportune to mention an unexplored consequence of climate change: our houses are cracking up.
Ottawa is built, with some exceptions, on a vast stretch of what the experts call “sensitive clay soil”, usually referred locally as leda, the old basin of the Champlain Sea.
During a prolonged drought in...