If you plant trees in and around your houses rather than keeping the place open you will save a lot on electricity and will help save the environment as well. When you plant trees around your house, you prevent the sunlight to directly come on your house and thereby making the temperature lower in your house and thus reducing the need for air conditioning. When lower air conditioning is needed the lesser will be your power consumption.
So when you plant trees in and around your house you save the planet in 2 ways:
1) Trees generate oxygen which will save the plant and coming generations.
2) Trees make the air-conditioning need less which saves power which in return save the environment and your money as well.
So save trees plant trees love trees as they are your best friends and do work for you 24/7 without asking anything in return.