100 gallons of Water Added into Air Daily by 1 Big Tree

Trees, and all plants do to some extent, recycle some of the rainwater that falls on them rather than let it all flow away


The "Smoke" in Great Smokey Mountains National Park

Smokey Mountains National Park
Source - art.com

The Great Smokey Mountains contain over 187,000 acres of old growth forest - the largest such forest east of the Mississippi. It got its name because, from a distance, this forest-covered range appears to be exhaling plumes of smoke into the sky above it.
But this is not smoke. This forest is usually covered in a mist that is the result of water vapor transpired by the trees and the natural fog created by water-laden air from the Gulf of Mexico that cools rapidly as it moves onto the higher elevations of the Appalachian mountain range.
Scientists estimate that a quarter of the rain that falls on these trees is transpired back into the atmosphere by the forest.


The Amazon Rain Forest

The Amazon Rain Forest
Source - travelblog.com

Trees in the 55 million year-old Amazon Rain Forest cover over 1.4 billion acres.
The forest gets about 9 feet of rain every year.
Scientists estimate that fully half the rainfall is transpired back into the atmosphere by trees of the rain forest. 
Estimates vary widely, but every canopy tree in the rain forest is estimated to transpires more than 00 gallons of water every day, during the growing season - this translates into adding over 10,000 gallons of water transpired into the atmosphere over the course of a summer from ONE tree.