If plants convert a greenhouse gas into a non-greenhouse gas, do they cool?
Plants are natural machines that convert $CO_{2}$ into $O_{2}$ when there is sunlight. This process is known as photosynthesis because photons provide the energy that triggers the reaction,
$$6CO_{2} + 6H_{2}O -&gt; C_{6}H_{12}O_{6} + 6O_{2}$$

The question then is where do the plant products,such as leaves, fruits, flowers,roots that are composed of $C_{6}H_{12}O_{6}$  stored? If these plant remains are stored in the ground more than they are decomposed and then release $CO_{2}$ into the atmosphere, then we can positively say they are the natural cleaning robots, sorry super-robots or cleaning freaks!