This Week in the Future, June 20-24, 2011

Campfires: Good for iPhones, bad for the (anthropomorphic, overheated) Earth. At least in its sweaty state, we can see its magnetic field.

Want to win this particularly trippy Baarbarian illustration on a t-shirt? It’s easy! The rules: Follow us on Twitter (we’re @PopSci) and retweet our This Week in the Future tweet. One of those lucky retweeters will be chosen to receive a custom T-shirt with this week’s Baarbarian illustration on it, thus making the winner the envy of their friends, coworkers and everyone else with eyes. (Those who would rather not leave things to chance and just pony up some cash for the t-shirt can do that here.) The stories pictured herein:

• Humans Might Be Able to See the Earth’s Magnetic Field, Like Birds Do
• Study: Rising Global Temperatures Spur Steepest Sea Level Rise In 2,100 Years
• Outdoorsy Japanese Cooking Pot Charges Phones Over a Campfire

And don’t forget to check out some of our other favorite stories of the week:

• The Goods: July 2011’s Greatest Gadgets
• Human Vaccine Cures Prostate Cancer in Mice
• One Camera With 40,000 Lenses Helps Prevent Blurry Images
• The Sex Files: Why Sex With Creatures from the Future Is a Bad Idea
• Celebrity Scandal Revealed: Last Week’s Hottest Japanese Pop Star Isn’t a Real Human
• Utah Man Posts Facebook Updates During SWAT Standoff, Gets Help From Online Friends
• New Alloy Can Convert Heat Directly Into Electricity
• You Built What?!: The Ultimate Tailgating Station Combines a TV, Wine Refrigerator, and Grill
• Robot of the Week: Automatic Butcherbot Debones 1,500 Whole Chickens Per Hour (Video)
• Testing the Goods: HTC’s Evo 3D, the Country’s First Glasses-Free 3-D Smartphone
• Archive Gallery: Strange Sports of Tomorrow