Why Do Forests Absorb More Carbon Dioxide Than They Release?

Forests are like giant sponges that drink in carbon dioxide from the air. When trees grow, they take in carbon to build their trunks and leaves. But when forests breathe out, mostly at night or during winter, they release some of that carbon back into the air. However, if a forest is growing fast, it absorbs more than it lets go, like a sponge that’s still getting wetter.

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Examples

A young tree growing quickly absorbs more CO₂ than it releases because it’s still building its trunk and leaves.
In a forest that just finished a fire, trees start absorbing more CO₂ than they let out as they grow back up.
During the day, a tree takes in carbon dioxide like a sponge, but at night, it lets some of it escape.

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Categories: Environment · carbon cycle· forests· climate change· soil science· environmental processes