Remember the turn-of-the-century calculation by the World Wildlife Fund that we're using the resources of 1.2 Earths? The picture's been getting worse, not better. According to their latest Living Planet report, discussed in this article in the New Scientist, we're now up to 1.4 Earths, and on track for two by the 2030s. (In case you're wondering, the UN has generally come to the same conclusions about these things.)
On another, weirder note: a Sino-American team has discussed new developments pertaining to an amnesia ray. Make of that what you will.