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Timber is carbon that a tree has pulled from the atmosphere.

As long as it stays in a building, it's not going back in the atmosphere.

Planting trees and turning them into timber is a form of carbon sequestration. As long as it doesn't burn or decay...

It’s interesting, you could say that trees grow out of the air, not the ground.

Indeed, most of the mass of a tree comes from the air. Even the water was in the air not so long ago.

Yep, and when you (or any animal) lose weight, you're exhaling your body mass.

Also France forests are ones of the most well managed in the world. We consistently have more trees growing than being cut.

That's also true in the US. We have way more trees today than we did 100 years ago. https://www.mnn.com/earth-matters/wilderness-resources/stori...