Chile defended itself on Monday against criticism it was too weak in presiding over international climate change negotiations, saying it did all it could but that four big polluting countries got in the way. President Sebastien Pinera described as “insufficient” the agreements reached on Sunday after marathon talks, but said it was not for the…

Some unlikely neighbours are moving in around the northernmost communities of the Northwest Territories, across the icy tundra of Canada’s High Arctic. Inuvialuit hunters and trappers say grizzly bears are showing up in increasing numbers on islands of the Beaufort Sea and experts say climate change is likely a driving factor. “The grizzly bears are…

A unique fossil that is “literally a black piece of coal” found in the dump of an 18th-century coal mine is revealing new insights about life before the rise of dinosaurs. It has also unseated a fossil found by a P.E.I. boy as the oldest known species of an ancient group called the “parareptiles.” The…

Sales of electric vehicles in Ontario have plummeted since the Progressive Conservative government cancelled a rebate last year, hampering progress toward a national target. In the first six months of this year, sales in Ontario were down more than 55 per cent from the same period in 2018, according to data from Electric Mobility Canada.…

This story is Part 2 of Quirks & Quarks’ Pathway to Mars series. Each instalment will look at one part of the huge challenge of the most ambitious journey of exploration we’ve ever attempted — a human mission to Mars. It’s easy to dream of putting humans on Mars, but designing the spacecraft to actually get…

Our solar system has a new celestial visitor making a close approach to the sun just in time for the winter holidays. It’s no Star of Bethlehem, but this interstellar comet could provide a unique opportunity to learn about conditions in another solar system.  “It’s a leftover remnant of planet formation process in an alien system…