Tolerance.ca
Director / Editor: Victor Teboul, Ph.D.
Looking inside ourselves and out at the world
Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.
Human Rights Observatory
By Alessandro N. Garritano, Postdoctoral Research Associate, Faculty of Science, University of Sydney; UNSW Sydney
Torsten Thomas, Professor in Microbiology, UNSW Sydney
When we think of marine life, we usually picture colourful coral reefs or dense seaweed forests filled with fish and other critters. The ocean that comes to mind is the one touched by sunlight.

However, most of the ocean is not like that. By volume, roughly 95% of the ocean consists of the permanently dark, cold deep sea. Despite such hostile conditions though, there is life in the ocean’s abyss.

Deep-sea marine sponges are among the organisms that live in these mysterious dark waters. They form “gardens”…The Conversation (Full Story)

By Julianne Piper, Research Fellow, Pandemics & Borders Project, Simon Fraser University
Kelley Lee, Professor and Tier 1 Canada Research Chair in Global Health Governance; Scientific Co-Director, Bridge Research Consortium, Simon Fraser University
Miranda Nonis, Research Fellow and Project Co-ordinator, Pandemics and Borders Project, Simon Fraser University
Recent outbreaks of Hantavirus and Ebolavirus raise concerns about risks linked to travel, with responses varying between countries. COVID-19 offers lessons for effective approaches to public health.The Conversation (Full Story)
By Anna Miller, PhD Candidate, School of Geography, Environment and Earth Sciences, Te Herenga Waka — Victoria University of Wellington
New research into the ancient Whakamaru supereruption reveals how multiple underground magma systems combined to unleash one of Earth’s most explosive events.The Conversation (Full Story)
By Human Rights Watch
Click to expand Image Pope Leo XIV presents his first Encyclical Letter “Magnifica humanitas” at the Synod Hall in the Vatican, May 25, 2026. © 2026 Alessia Giuliani - Catholic Press via Vatican Pool/Getty Images Pope Leo XIV’s first encyclical, “Magnifica Humanitas” (Magnificent Humanity), the Catholic Church’s authoritative pastoral letter released on May 25, emphasized the need for “safeguarding the human person in the time of artificial intelligence,” including the use of AI in warfare and the threat posed by killer robots.Building on the church’s long-held position,… (Full Story)
By Eric Palkovacs, Professor of Ecology and Evolutionary Biology, University of California, Santa Cruz
Steven T. Lindley, Researcher in Fish Ecology, University of California, Santa Cruz
Salmon have faced a boom-bust cycle for years. Making their recovery last longer will require some big changes, including how hatcheries produce fish.The Conversation (Full Story)
By Sylvanus Kwaku Afesorgbor, Associate Professor of Agri-Food Trade and Policy, University of Guelph
Enock D. Opoku, Research Assistant, Department of Food, Agricultural, and Resource Economics, University of Guelph
Canada’s agricultural exporters face growing pressure from trade disputes that expose the risks of concentrating exports in too few markets.The Conversation (Full Story)
By Kai James, Professor of Aerospace Engineering, Georgia Institute of Technology
On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be unexplained flying objects. These file dumps were the culmination of a process that was set in motion back in July 2023, when a group of government whistleblowers testified before Congress that the U.S. government was secretly in possession of extraterrestrial spacecraft…The Conversation (Full Story)
By Sanjib Chaudhary
"Pilru — Songs of resistance is a community-led initiative dedicated to documenting, protecting, and reclaiming the handcrafted musical instrument passed across generations by Adivasi Tharu and Kumhar communities of the Tarai" (Full Story)
By Jack Robinot, Doctorant en sciences de l'ingénieur, Centre national de la recherche scientifique (CNRS); Université de Perpignan Via Domitia
Alexis Paillet, Chargé de projet vaisseaux spatiaux, Centre national d’études spatiales (CNES)
Stéphane Abanades, Directeur de Recherche, Centre national de la recherche scientifique (CNRS)
Sylvain Rodat, Chargé de recherche, Centre national de la recherche scientifique (CNRS)
As lunar missions are back in vogue with engineering more sustainable human presence on the Moon in mind, there’s no getting away from the fact that you can’t breathe on a satellite that has no atmosphere.The Conversation (Full Story)
By Mélissa Morel, Chercheure en métallurgie et en archéologie, University of Cambridge
Anne Mayor, Maître d'enseignement et de recherche en archéologie et anthropologie, Université de Genève
Ladji Dianifaba, Maître de conférence en archéologie, Université Cheikh Anta Diop de Dakar
How was iron produced 2,000 years ago in Senegal? A recent study at the Didé West 1 archaeological site, in the Falémé Valley in eastern Senegal, sheds light on an ancient iron production technique.

Passed down from generation to generation for nearly eight centuries, this technology appears to have been developed to meet local needs. African archaeology specialists Anne Mayor, Mélissa Morel and Ladji Dianifaba explain the significance of this discovery and what it reveals about the…The Conversation (Full Story)

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