It's everywhere, actually.
Dust from the Chicxulub asteroid crash plunged the Earth into an ‘impact winter’, leading to the extinction of the dinosaurs, a new study says It was, to put it mildly, a bad day on Earth when an asteroid smacked Mexico’s Yucatan Peninsula 66 million years ago. The impact caused a global calamity that erased three-quarters of the world’s species – and ended the age of dinosaurs. The immediate effects included wildfires, quakes, a massive shockwave in the air and huge standing waves in the seas.
‘It was cold and dark for years,’ said co-author Dr Philippe Claeys, a Vrije Universiteit Brussel planetary scientist. Earth descended into an ‘impact winter’, with global temperatures plummeting and primary productivity – the process land and aquatic plants and other organisms use to make food from inorganic sources – collapsing, causing a chain reaction of extinctions. As plants died, herbivores starved. Carnivores were left without prey and perished.
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