Depending on who you talk to, it seems Im either a wretched wastrel polluter on par with some smoke spewing Linfen factory, or Im a Rainbow Warrior mincing around in hemp sandals looking for a tree to embrace. Im speaking of my carbon footprint naturally: the rough calculation of how my lifestyle impacts the Earth. With our planets health constantly in debate these days—is the atmosphere really warming, and if so is that actually bad, and if so is it our fault, and if so can we do anything about it?—I was curious to see how I chalked up and consulted several of the various calculators found online. Putting in the numbers, the completely contradictory estimates nicely reflect the murkiness of the debate were currently in. It also calls into question the budding market for carbon offsets—the process of hedging your environmental impact by putting money into environmentally sound resources.
138 years of Popular Science at your fingertips.
Each issue has been completely reimagined for your iPad. See our amazing new vision for magazines that goes far beyond the printed page
Stay up to date on the latest news of the future of science and technology from your iPhone or Android phone with full articles, images and offline viewing
Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed
Science is reinventing play, from extreme sports to gamification to ridiculous roller coasters to the playgrounds of tomorrow, and this issue is chock full of fun. Also, on a less fun note: Did global warming destroy my hometown?