With all the excitement about sending astronauts to Mars to explore the possibility of building human settlements on the planet, one question comes to the forefront: but what will they eat?

Today in The Conversation Canada, Lenore Newman at the University of The Fraser Valley and Evan Fraser at the University of Guelph write about their new book, Dinner on Mars. In it, they explore the innovative and spectacular approaches to food production that will need to come into play, from cellular agriculture to specialized greenhouses. “Imagining what agriculture could be like on Mars is a fascinating project,” they write, “but it’s when we think about how these technologies may affect life on Earth that this topic becomes extremely serious.”

Also today:


Nehal El-Hadi

Science + Technology Editor & Co-Host of The Conversation Weekly Podcast

Growing food in space will rely on innovative agricultural technologies. (NASA)

The food systems that will feed Mars are set to transform food on Earth

Lenore Newman, University of The Fraser Valley; Evan Fraser, University of Guelph

Agricultural technologies to grow food on Mars can help address climate change, sustainability and food scarcity challenges.

Canada’s extension of copyright to 70 years after an author’s death puts corporate profits ahead of the public interest. (CHRISTOPHER DOMBRES/flickr)

More means less: Extended copyright benefits the corporate few, not the public

Lisa Macklem, Western University

Canada’s extension of copyright might be good for corporations that hold copyrights, but it’s bad news for creators and the public.

Recruits attend military training at a firing range in the Krasnodar region in southern Russia in October 2022, eight months into Russia’s war in Ukraine. The mobilization of recruits was a sign of Russian acknowledgement that it was engaged in full-fledged war, not a ‘special military operation.’ (AP Photo)

Why Russia’s war in Ukraine today is so different from a year ago

Alexander Hill, University of Calgary

Russia’s army in Ukraine is fighting a much more artillery-intensive and methodical war than it was almost a year ago.

Voting silences voices. Listening deeply to people in your group leads to more robust and better decisions. (Shutterstock)

Consensus decision-making is surprisingly effective in both communities and workplaces

Mel Rutherford, McMaster University

In formal consensus decision-making, no proposal is adopted until every concern is heard, understood and addressed. Here’s how it can work.

La Conversation Canada

Un restaurant du Vieux-Montréal. L'implantation des modules électroniques des ventes dans les restaurants du Québec, il y a dix ans, a permis au gouvernement d'aller chercher plus d'un milliard de dollars additionnels en contributions fiscales de toutes sortes. La Presse canadienne/Graham Hughes

Dix ans après leur implémentation dans les restaurants, l'enregistrement des transactions a mis à mal l'économie au noir

Martin Boyer, HEC Montréal; Philippe d'Astous, HEC Montréal

L’implantation obligatoire des modules électroniques des ventes dans les restaurants du Québec, il y a dix ans, a eu d’importants impacts, dont plus d’argent dans les poches de l’État.


Environment + Energy