Nature Offers The Best Defense Against Flooding

Spring flooding in Canada this year upended lives, inundated city streets and swamped houses, prompting calls for sandbags, seawalls and dikes to save communities. Ontario and Quebec’s April rainfall was double the 30-year average. Thousands of homes in 130 Quebec municipalities stretching from the Ontario border to the Gaspé Peninsula flooded

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The Grisly Truth about B.C.’s Grizzly Trophy Hunt

Grizzly bears venturing from dens in search of food this spring will face landscapes dominated by mines, roads, pipelines, clearcuts and ever-expanding towns and cities. As in years past, they’ll also face the possibility of painful death at the hands of trophy hunters. British Columbia’s spring bear hunt just opened. Hunters are fanning across the province’s mountains, grasslands,

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Better Discourse For a Kinder World

The U.S. election was a chilling illustration of the atrocious state of public discourse. It doesn’t bode well for a country once admired for leadership in education and science. As public relations expert and former David Suzuki Foundation board chair James Hoggan writes in I’m Right and You’re an Idiot, “polluted public discourse

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Better Discourse For a Kinder World

The U.S. election was a chilling illustration of the atrocious state of public discourse. It doesn’t bode well for a country once admired for leadership in education and science. As public relations expert and former David Suzuki Foundation board chair James Hoggan writes in I’m Right and You’re an Idiot, “polluted public discourse

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Wild Pacific Salmon Face Upstream Battle for Survival

Salmon have been swimming in Pacific Northwest waters for at least seven million years, as indicated by fossils of large saber-tooth salmon found in the area. During that time, they’ve been a key species in intricate, interconnected coastal ecosystems, bringing nitrogen and other nutrients from the ocean and up streams and rivers to spawning grounds, feeding whales, bears and eagles and fertilizing the magnificent coastal rainforests along the way.

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David Suzuki: Cultural and Ecosystem Diversity Key to Resilience

It’s been shocking to watch news of the Brexit vote in Britain, Donald Trump’s promise to build a wall between Mexico and the U.S. and the ongoing threats and violence against ethnic minorities in many parts of the world. I’m not a political or social scientist, but my training as a biologist gives me some insight.

When I began my career as a scientist, geneticists were starting to analyze the molecular properties of single genes within a species. When we started looking at highly evolved species such as fruit flies, we thought we would find that their genes had been honed through selection over time, so they would be relatively homogeneous within single species. Examining one kind of protein controlled by a specific gene, we expected to find them all pretty much the same. Instead, we learned there was a great deal of heterogeneity, or diversity. A gene specifying a protein could exist in a number of different states.

This is now called “genetic polymorphism” and is considered to be the very measure of a species’ health. Inbreeding or reduction of a species to a small number reduces genetic polymorphism and exposes harmful genes, thereby rendering the species more susceptible to sudden change. In other words, genetic polymorphism confers resilience by providing greater possibilities as conditions shift.

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