If we don't take action now, I am convinced that we will not be walking in the woods with our grandkids. Trees purify the air and generate oxygen. They provide a much needed source of clean air to help counteract growing pollution-related problems such as asthma and global warming. When forests die, they no longer use up nitrogen in the soil. This excess nitrogen runs off into streams and lakes, acidifying the water and depleting fish stocks.
Trees are the lungs of the world.
They filter out bad things.