Climate change has made its mark across different parts of Canada. From heat waves and wildfires to floods and droughts, the effects of climate change have been escalating, intensifying and affecting the ocean, the glaciers, the forests, the prairies and life as we know it. In recent decades, thousands of lakes across the northern hemisphere are seeing the shortest seasons of ice-cover in history. Lake Superior and Lake Erie are beginning to remain ice-free during some winters.

Today in The Conversation Canada, Sapna Sharma from York University, David Richardson from the State University of New York and Iestyn Woolway from the University of Reading, in the United Kingdom, shed light on this disappearing lake ice and its impact. Lake ecology, northern and Indigenous communities and winter recreation are all being affected. They write: “If the ice cover in northern lakes continues to decline at the same pace, it will have severe ecological and cultural consequences.”

Also today:

All the best,

Freny Fernandes


The decreasing ice cover in northern lakes will severely impact the lake ecology as well as winter recreation activities in the northern region. (Shutterstock)

Our lakes are losing their ice cover faster than ever — here’s what that means for us

Sapna Sharma, York University, Canada; David Richardson, State University of New York at New Paltz; Iestyn Woolway, University of Reading

Lakes in the northern hemisphere are rapidly losing their ice cover due to rising greenhouse gas emissions. The only way to preserve lake ice is to limit GHG emissions and slow down climate change.

Canadian Taxpayers Federation former Federal Director Aaron Wudrick announces the winners of the 18th annual Teddy Waste Awards during a news conference on Parliament Hill in 2016. THE CANADIAN PRESS/Adrian Wyld

The Canadian Taxpayers Federation’s politics are anti-Indigenous — so why do media outlets still quote them?

Kyle Willmott, Simon Fraser University

When the media consults the CTF, it demonstrates contemporary hostility towards Indigenous nations. Viewing the CTF’s advocacy as a whole demonstrates their orientation very clearly.

We interact with nanoparticles in multiple ways every day. The nanoparticles in this illustration are delivering drugs to cells. (Shutterstock)

The nanoparticles in mRNA vaccines are nothing to fear: We interact with many useful, tiny particles every day

Keroles Riad, Concordia University; Sylvie Ouellette, Concordia University

Some vaccine hesitancy is based on a fear of the nanoparticles used in mRNA vaccines. But humans have been interacting with nanoparticles for millennia, and we use nanotechnology-based devices every day.

We need a new script about women and HIV. (Allie Carter)

‘HIV Made Me Fabulous’ film relies on science and embodied storytelling to counter stigma and discrimination

Allie Carter, Simon Fraser University; Angela Kaida, Simon Fraser University

Can a film’s artful telling of experiences of stigma and HIV, using dance, can help promote empathy and compassion?

La Conversation Canada

Dans le ciel, un point lumineux sur quinze sera bientôt un satellite

Samantha Lawler, University of Regina

Les mégaconstellations de satellites encombreront visuellement le ciel nocturne, perturbant la recherche astronomique. Et les dommages environnementaux causés par ces satellites sont encore inconnus.



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