Part of our pollution problem is the production of too much CO2. Burning fossil fuels, driving cars and manufacturing all contribute to the problem. Trees and other plants absorb CO2 and convert it to oxygen and carbon. The carbon is converted into plant parts such as wood, leaves and roots. A solution to the CO2 problem seems fairly simple – maintain and expand our forests. It seems natural to ask the question – do forests remove CO2 from the air? The answer will surprise you.