Earth is our only home in universe.If we don't protect it from now on,we will have nowhere to go .The earth makes our mother, we will appreciate it, and without it, we also hard to survive.
That we how to protect our earth?
First, in our life to save water, saving energy use. Second, as far as possible a private car, a bus or ride a bike, way can exercise, and secondly and can reduce exhaust emissions of.