This page contains statistics (both by the issue and general) and public opinion data. Both of these are used by legislators to craft effective bills that will pass through both houses and get signed by the president (hopefully by President Schoeplein in your case!). Using data in your research is not optional - it is a requirement!
Note: If you would like more websites specific to your topic (i.e. another website with data on the environment), reach out to President Schoeplein or Ms. Arnold (who is just a regular citizen - though a very smart and helpful one).