What if there were 1 trillion more trees on the planet?
TED Climate
Urban Trees and the Environment
Trees act like a natural sponge absorbing storm water run off before releasing it back into the atmosphere. Roots also help prevent floods while reducing the need for storm drains and water treatment plants. The webs of their roots protect against mud slides while allowing soil to retain water and filter out toxins. Their porous leaves purify the air by trapping carbon and other pollutens. And urban trees don't just benefit people, they can affect our mental health as well.
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