What triggers the changing colours of trees in the Fall and how are climate change and extreme weather events influencing what we see year to year? Ian Major is a Research Scientist in Forest Genomics at Natural Resources Canada, who studies tree health and resilience in a changing climate. He spoke to Andrew Carter.

What triggers the changing colours of trees in the Fall and how are climate change and extreme weather events influencing what we see year to year? Ian Major is a Research Scientist in Forest Genomics at Natural Resources Canada, who studies tree health and resilience in a changing climate. He spoke to Andrew Carter.

The Andrew Carter Podcast is a daily, high-paced, round-up of stories and news impacting Montrealers. While the podcast delivers the latest political, health and entertainment headlines - it will also leave you with a smile.

The Andrew Carter Podcast is a daily, high-paced, round-up of stories and news impacting Montrealers. While the podcast delivers the latest political, health and entertainment headlines - it will also leave you with a smile.

The Andrew Carter Podcast

The latest audio and podcasts from CJAD 800 Montreal.

The latest audio and podcasts from CJAD 800 Montreal.

CJAD 800 - The Latest Audio and Podcasts

As the temperatures dip and the days grow shorter, the trees around us are putting on one of nature’s most spectacular shows — the changing colours of fall. But what exactly triggers those reds, oranges, and yellows, and how are climate change and extreme weather events influencing what we see year to year? To help us understand, we’re joined by Ian Major, a Research Scientist in Forest Genomics at Natural Resources Canada, who studies tree health and resilience in a changing climate. He spoke to Andrew Carter.

What impact does climate change have on the colour of trees in Fall?

Rory O'Neil, Trudie Mason, David Tordjman, John Moore, Tom Mulcair, Dr. Sandeep Mayer, Lynda Colgan, Hunter Stevens

Rory O'Neil, Trudie Mason, David Tordjman, John Moore, Tom Mulcair, Dr. Sandeep Mayer, Lynda Colgan, Hunter Stevens

The Andrew Carter Morning Show (Thursday January 29, 2026)

I was just wondering about crustaceans, things like lobsters and crabs.They’re covered in hard shells, yet somehow they keep growing. They molt, they disappear for a while, and then suddenly they’re bigger. How does that actually work? And what do we really know about how these animals live, eat, and reproduce? Marine biologist Hunter Stevens, Research Manager with CPAWS Nova Scotia spoke to Andrew Carter.

I was just wondering about crustaceans, things like lobsters and crabs.They&rsquo;re covered in hard shells, yet somehow they keep growing. They molt, they disappear for a while, and then suddenly they&rsquo;re bigger. How does that actually work? And what do we really know about how these animals live, eat, and reproduce? Marine biologist Hunter Stevens, Research Manager with CPAWS Nova Scotia spoke to Andrew Carter.

Just Wondering: How can crustaceans grow with a hard shell?

Many of us joke about being “bad at math” in a way we’d never joke about not being able to read.
New data suggests this casual attitude toward math may be catching up with us. A recent report shows Canadian students’ math scores have been declining for more than a decade. Lynda Colgan, Professor Emerita of Elementary Mathematics at Queen’s University, spoke to Andrew Carter.

Many of us joke about being &ldquo;bad at math&rdquo; in a way we&rsquo;d never joke about not being able to read. New data suggests this casual attitude toward math may be catching up with us. A recent report shows Canadian students&rsquo; math scores have been declining for more than a decade.&nbsp;Lynda Colgan, Professor Emerita of Elementary Mathematics at Queen&rsquo;s University, spoke to Andrew Carter.

Many of us joke about being “bad at math” in a way we’d never joke about not being able to read. New data suggests this casual attitude toward math may be catching up with us. A recent report shows Canadian students’ math scores have been declining for more than a decade. Lynda Colgan, Professor Emerita of Elementary Mathematics at Queen’s University, spoke to Andrew Carter.

What impact does climate change have on the colour of trees in Fall?

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