Darius Mahdavi

Science communicator

Darius Mahdavi is the science specialist for CBC News Network and CBC British Columbia, based in Vancouver. He's worked as a researcher and earned a degree in conservation biology and immunology from the University of Toronto. From quirky research to essential climate news to fun facts, he covers all things science. You can hear his daily science segments on the B.C. afternoon radio shows, or watch him nightly on Canada Tonight and CBC Vancouver News. If you have a science or climate question, reach out at darius.mahdavi@cbc.ca.

Latest from Darius Mahdavi

Forever chemicals are everywhere. These burnt wood chips could help change that

Scientists at UBC are trying to take the ‘forever’ out of some forever chemicals by developing a new treatment that removes harmful PFAS substances from drinking water.

How scientists are using poop to track climate-change effects on pikas and their mountain home

American pikas are more than just adorable little mountain dwellers — they're also a potential canary in the coal mine when it comes to the impact of climate change on their ecosystem. B.C. researchers are now developing new ways to better monitor their populations.
CBC Explains

'Pure price-gouging': Advocates celebrate price drop of critical TB test but say Big Pharma needs to do more

Every 20 seconds, someone dies of tuberculosis. But health advocates and experts hope that a newly announced reduction in the cost of TB testing might change that.
CBC Explains

Claims of revolutionary superconductor LK-99 are meeting resistance. Here's what you need to know

LK-99 is all the buzz on social media, but it is just the latest of many claims to have created a room-temperature superconductor. What is it that has people so excited, and what — if anything — sets this claim apart?
CBC Explains

Millions of Canadians will face extreme fire danger this summer. Here's what that means and how to stay safe

Northern Ontario, like much of Canada, has been under high to extreme fire risk for most of the wildfire season — and that’s not likely to change anytime soon. But what does that mean for you and keeping yourself safe?
CBC Explains

From freak weather to our water supply to optimism and action. Here are answers to your climate questions

Over the last four months, you've sent us over 300 climate questions as part of the Great Lakes Climate Change Project. We've researched the most commonly asked questions and given you answers about extreme weather, our water supply, and how you can both take action and stay optimistic in the face of the climate crisis.
CBC Explains

Feel hopeless about our planet? Here's how you can help solve a big problem right in your own backyard

It's easy to feel hopeless about climate change and believe most solutions are out of your hands. But you can help fix one of the biggest environmental issues of our time, and it's likely growing right in your own yard: lawn grass.
CBC Explains

Researchers need help to determine which birds are most at risk from climate change. Here's what you can do

The early bird gets the worm, the old saying goes. That's truer today due to climate change, as many birds return to Ontario too late to catch their favourite meals. Fortunately, you can help by participating in citizen science programs like eBird, iNaturalist and Project Feederwatch.
CBC Explains

New study indicates chemicals from grocery stickers may be leaching into foods. Here's what you need to know

Bisphenol A (BPA), a chemical primarily used in plastics, is tightly regulated in Canada. But there are concerns unregulated chemicals replacing BPA have similar negative effects on the body. According to a new study led by a McGill University team, some of those toxic compounds in food labels can leach into the products.
CBC Explains

Breathe easy. Research suggests 3 toxic pesticides are finally eliminated from air around the Great Lakes

We can breathe a little easier around the Great Lakes and likely across Canada, suggests new research, as several toxic insecticides have finally disappeared from the air around the Lakes decades after they were banned in this country and phased out in the United States. Unfortunately, pesticides like DDT still linger in cities.