A sign at the global climate change strike. Credit: Markus Spiske/Unsplash, FAL

Climate change no longer seems just a future threat. In 2019, major fires in Australia, Russia and California burned over 13.5 million hectares of land—an area four times greater than the size of Belgium. Major floods and cyclones displaced over four million people in Bangladesh, India and Iran, while entire townships were laid to waste by storms such as hurricane Dorian in the Bahamas.

This year, things show no sign of letting up: the Australian fires continue, Greenland ice sheets are expected to lose another 267 billion tonnes of ice and thawing Arctic permafrost is causing positive feedback effects that will intensify climate heating and future impacts.
In the face of such a global catastrophe, it can seem futile to take any action, individually. Over 36 billion tonnes of CO₂ are…

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