Want to calculate a carbon footprint?
By Claire TregeserSeattle Post-Intelligencer
07/24/2008
“One reason for the wide range is that emissions from air travel, the couple's largest carbon producer, are often calculated very differently, said Clark Williams-Derry, research director at Sightline Institute, a nonprofit research center that studies carbon calculators.”
send feedback or bugs about sightline.org to ask_us@sightline.org
site credits |
= premium content; free registration required
site credits |
= premium content; free registration required