Can the Earth be saved?

first of all, i think our environment is fill with high tech technology, therefor, there is no others needs for more research which will harm our environment therefor, we should start cleaning our country to be a safe and green earth. Lastly i think that whether the earth can be save not, we play a big role, we should try our best not to think of environment before we act. For example, shopping plastic bag, nowadays, our shopping centre does not provide any more plastic bags, this is a very good idea as plastic when burn will produce a toxic gas, otherwise, we can recycle plastic bags too. we can save water by not wasting them too much on non necessary like playing water guns, bathing too long. electricity should also be save by not using computer for long hour, play tv games, all this cause alot of electricity.