Here’s a big number: $44 trillion.

That’s how much of the world’s total economic output is dependent on animals and ecosystems, according to the World Economic Forum. Insects pollinate commercial crops, coral reefs protect coastal buildings, wetlands purify water, and all of those services — and more — help fuel economic growth.

Biodiversity loss could flatten corporate profits. Investors are scrambling to figure out which firms hold the most risk.

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