Deforestation alerts (near real-time); GLAD alerts (weekly, 30m, select countries, UMD/GLAD); FORMA alerts (daily, m, tropics, WRI/Google); FORMA active. Dear EarthTalk: Is it true that cutting and burning trees adds more global warming pollution to the atmosphere than all the cars and trucks in the world combined?. What exactly is the connection between deforestation and global warming, anyway? The answer lies in the basic biochemistry of plants. Tropical forest trees, like.