CO2 slows down the movement of heat it insulates. More CO2 in our air is like putting the planet inside a tremendous closed jar. Earth gets more and more heat from the sun, but it can't cool off. It gets warmer. When we plant trees, we create a place to store the carbon in CO2.
Trees take the carbon out of the air and put it into storage.
This is 1 reason why the rainforests are so important - they're places the planet can store lots and lots ofcarbon. Sunglasses For Earth Earth is bathed in light and other energy from the sun all the time. Not all of that energy is healthy. One kind of energy that's not good is called ultraviolet radiation usually we say UV or UV-rays for short. High up in the air at the edge of space is a special kind of oxygen called ozone.