Plant trees Plant trees in your backyard or join planting drives. It is estimated that a young tree can absorb CO2 at a rate of 13 pounds (5 kilograms) per tree every single year. And when it matures (in about 10 years) it can absorb 48 pounds (21 kilograms) per year. Trees are also capable of removing sulphur dioxide, nitrogen oxide, and small particles making the air we breathe fresh and healthy for us. make me offers if you want to produce forests but even planting one tree in your garden, between the 65 million of us in Uk we would help shift a lot of CO2.ie 325 millon kilos of CO2 a year.