The Internet has already killed AT&T's Time & Temperature service in 48 states and now the phone company's adding California to that list. Not that many people were using it anyway, Janet Babin reports.

George Hotz, 17, has posted on his blog the instructions for how to fiddle with an iPhone so it can be used with a wireless carrier other than AT&T. Kai Ryssdal figured that was worth a conversation and called him up.

Debate in Congress over government regulations on carbon dioxide emissions is starting to heat up. Sam Eaton reports on the differing views on a carbon tax and "cap and trade."

There's money to be made in the effort to halt global warming. One burgeoning business is the buying and selling of "carbon offsets" to American industry and consumers. What are these offset projects and how good are their claims? Claire Schoen reports.