Kristen Villebrun and Wendy Bush hoped they wouldn't have to pray for Chedoke Creek, but four years after they first raised alarm about the water's condition, they were part of an Indigenous full moon ceremony to do just that. About 50 people showed up near Princess Point on the dark and frigid Monday evening for the monthly ceremony, which was particularly special as it focused on Chedoke Creek. The body of water that runs into Cootes Paradise had about 24 billion litres of sewage and storm water runoff leak into it due to a gate being left open.
Atmospheric rivers have been making headlines over the past couple of years. At their worst, they have been the cause of major flooding in California as well as devastating flooding in B.C.’s interior in 2021 — along with even more flooding in the province this past winter. And many experts have noted that global climate change caused by burning fossil fuels is making these events worse.
"A once-in-a-decade event" is how Jeffery Langille describes the University of New Brunswick's lead role in a NASA mission. Langille is the lead instrument scientist for the spatial heterodyne observations of water, also known as the SHOW instrument. It's one of three specialized instruments that are part of the high-altitude aerosol, water vapour, and clouds, or HAWC, instrumentation.
Extreme weather events are increasing in frequency and intensity and the dynamics of Earth’s atmosphere is ever-changing. A new pan-Canadian collaboration will measure aerosols, water vapour and clouds and how they interact to impact Earth’s weather and climate as part of NASA’s Atmosphere Observing System (AOS) mission. The Canadian Space Agency (CSA) will collaborate with NASA on AOS with its High-altitude Aerosols, Water vapour and Clouds (HAWC) mission. The mission consists of two Canadian instruments on a Canadian satellite and a third instrument on a NASA satellite, all planned for launch in 2031. These innovative instruments will provide critical measurements, enabling Canadian climate scientists and weather forecasters to better understand and predict extreme events like severe storms, floods, droughts and poor air quality conditions.
Human-induced climate change “contributed substantially” to the atmospheric river and ensuing floods that devastated B.C. last year, a new study by Environment Canada scientists confirms, warning Canadians to brace for more of the same. “The chance this kind of flood will happen has increased by 100 to 300 per cent due to human influence,” Xuebin Zhang, a senior research scientist with Environment and Climate Change Canada, told Canada’s National Observer.
The torrential rainfall that has pummeled British Columbia in recent days — causing mudslides and flooding, shutting down highways and stranding and displacing thousands — is being fuelled by an atmospheric river. Atmospheric rivers are long, narrow bands of moisture in the atmosphere that carry water from the tropics and subtropics toward the poles.
