'The hope is we're not caught off guard' again, B.C. researcher says of discovery of 9 new coronavirus species

This 2020 electron microscope image provided by the National Institute of Allergy and Infectious Diseases - Rocky Mountain Laboratories shows SARS-CoV-2 virus particles which cause COVID-19, isolated from a patient in the U.S., emerging from the surface of cells cultured in a lab. (NIAID-RML via AP) This 2020 electron microscope image provided by the National Institute of Allergy and Infectious Diseases - Rocky Mountain Laboratories shows SARS-CoV-2 virus particles which cause COVID-19, isolated from a patient in the U.S., emerging from the surface of cells cultured in a lab. (NIAID-RML via AP)

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Explainer: Where do hydro poles come from?

The devastating storm in southern Ontario and Quebec last weekend damaged thousands of hydro poles across the two provinces. CTVNews.ca gives a rundown of where utility companies get their hydro poles from, as well as the climate challenges in the grid infrastructure.