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