Tyler Hamilton reports that global warming has caused ground temperatures across Canada to rise over the past few decades, in some cases by as much as a few degrees, according to the first comprehensive assessment of Canadian shallow geothermal resources. The study suggests that some of that thermal energy can be harvested with geo-exchange technologies and used for heating homes and buildings during the winter. There was this realization that we had a heat pulse going into the ground and it was a function of climate warming. It is really one of the best records of climate warming there is in Canada, said study co-author Stephen Grasby, a research scientist at the Geological Survey of Canada.
Depending on where you are ground temperature has increased by a few degrees. Though it is more evidence of global warming, he pointed to the up side that we actually have an opportunity to retrieve that heat energy trapped by global warming, to use that heat that has gone into the ground to offset future use of non-renewable energy sources. The study, recently published online in the journal Natural Resource Research, assessed ground temperatures across Canada down to 250 metres to get a sense of the potential resource. This further suggests that climate change via warming is underway.
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