These consumer product environmental impacts were calculated by the
Union of Concerned Scientists.
For each product group in the list below, there are seven percentages,
showing how much that group contributes to each of
the seven categories of environmental impact. To find out how you can help the
environment most, look for the products you use that have the highest percentage
of impact, and try to reduce your use of those first. You can click on each of
the ten groups below, and the list will expand to show all the specific products
that make up that group.
If you want to learn more about these ratings, and how they were
calculated, the best source is the book that the Union of Concerned
Scientists published on the subject,
The Consumer's Guide to Effective