Global Warming damage human life

The effect of decreasing forest is global warming where earth heat increase to high level.
This situation is a seriously threat for any living in the world.
So lets make a small thing to prevent hard damage to our earth.
For example shut down the computer after finish work. Went out the lamp and economical usage of electricity.
Perhaps we will see our next generation live in green world.
http://www.bbc.co.uk/news/technology-14647644