What can you do to preserve the environment?

Here you got some links to find information for your essay:
- http://science.howstuffworks.com/environmental/green-science/save-earth-top-ten.htm
- http://www.50waystohelp.com/
- http://www.myenglishpages.com/site_php_files/reading-7-ways-to-protect-the-environment.php#.VOMz47Fgh0k