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Climate Change

Climate change is causing algal blooms in Lake Superior for the first time in history

Lake Superior is known for its pristine waters, but a combination of nutrient additions from increasing human activity (including farming and development), warming temperatures and stormy conditions have resulted in more frequent blooms of potentially harmful algae. Cyanobacteria thrive in freshwater systems with warmer water temperatures and elevated nutrient inputs, typical of highly urbanized and agricultural […]

After decades of Arctic sea ice getting faster and more hazardous for transport, models suggest a dramatic reversal is coming, York U study finds

Will ice floating in the Arctic Ocean move faster or slower over the coming decades? The answer to this question will tell us whether marine transportation can be expected to get more or less hazardous. It might also have important implications for the rate of ice cover loss, which is hugely consequential for Northern Indigenous communities, ecosystems, and the global climate system.

Are freeloading premiers undermining Canada’s climate strategy?

It has been a bad few weeks for the federal government’s plans for climate action. A little more than five years ago, there was a strong federal-provincial consensus around climate action. That consensus included a national carbon pricing system, with the federal government providing a back-stop system where provinces didn’t price carbon themselves. Canada is now confronted […]

Canada must stop treating climate disasters like unexpected humanitarian crises

Two years after devastating wildfires razed 90 per cent of Lytton, B.C., reconstruction is slow and residents remain displaced and angry about it. This summer, 65 per cent of the Northwest Territories’ 46,000 residents evacuated, including almost the entire population of Yellowknife, due to a wildfire. The year 2023, in fact, marked Canada’s worst-ever wildfire season, with nearly 19 million hectares […]

Canadian financial institutions are fuelling the climate change crisis

Once again, Canada will almost certainly fail to meet its target to reduce greenhouse gas emissions by 40 to 45 per cent by 2030 in accordance with the most recent Intergovernmental Panel on Climate Change (IPCC) recommendations. This is despite the government’s optimistic spin on the release of its latest emissions inventory report. Jerry DeMarco, the environment commissioner in the Auditor General’s office, has […]