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Of all the scientists involved in the Manhattan Project, only one walked away from the plan to build a nuclear bomb. But you won’t hear the name Joseph Rotblat — or the story of how he brought the fight for nuclear disarmament to a small Nova Scotia village — in …

‘I was certain it was Grace, and it was heartbreaking,’ a conservationist who had been tracking Grace says.  Warning: This story contains disturbing details and images. One of Ontario’s oldest snapping turtles has been found dead, capping a year of conservationists searching for signs of her survival. Now the unusual …

In this week’s issue of our environment newsletter, we look at the possible effects of a nuclear winter, as well as the discovery of a humungous old-growth tree in B.C.  Also: A new way to think about wildlife protection. Our planet is changing. So is our journalism. This weekly newsletter …

Humans have given it a low-key name: geoengineering. But it’s nothing less than changing the Earth — the air, the clouds, the oceans — so that we can hold off on global warming’s most devastating effects until we cut our carbon pollution. Tinkering with skies, clouds and oceans is risky, …

The bizarre bones of an ancient whale suggest it may have been the most massive animal that ever lived — outweighing today’s blue whale. Fossil whale Perucetus colossus was shorter than record-holding blue whale, but may have outweighed it, The bizarre bones of an ancient whale suggest it may have …

B.C. has experienced an unprecedented wildfire season that has had a devastating impact on many wildlife species, but some of the animal kingdom’s smallest citizens have adapted to thrive in this challenging environment. Pyrophilic, or fire-loving insects, seek charred trees or heat-sterilized soil to lay their eggs. B.C. has experienced …

Water temperatures off southern Florida have reached about 38 C in recent weeks, and marine biologist Phanor Montoya-Maya says that heat is wreaking havoc on marine life — but work is underway to save the coral. Marine biologist says affect on ocean has been devastating, but work is underway to …

Remains found in an Iron Age burial chamber on the Isles of Scilly belonged to a female warrior, according to the authors of a new study that challenges long-held assumptions about the historical role of women in warfare. New technique that identifies sex using tooth enamel is changing historical narratives. …

When did jellies start swimming through the sea as jellyfish? Scientists say fossils found in Canada’s Burgess Shale are the oldest jellyfish of their kind ever found. Burgess Shale fossils from B.C. are oldest adult swimming jellyfish ever found, scientists say. Five hundred million years ago, the ancient, shallow sea …

Scientists in Russia were thawing a sample of Siberian permafrost, when they found something completely unexpected — a pair of living roundworms that were in a state of suspended animation for more than 46,000 years. The worms, which have already started reproducing, could hold clues for adapting to climate change. …