Officials in Los Angeles said today that they're going to reconsider a water conservation proposal that won't just ask residents to change their habits, but calls for recycling wastewater, too.

The plan would place restrictions on watering lawns and washing cars, and it would encourage residents to switch to less thirsty washing machines. But the most controversial part of the initiative would involve recycling water - refilling underground drinking supplies with treated wastewater. Los Angeles has tried this before, but critics forced officials to drop it.

Now, though, city officials say improvements in recycling technology make it a viable option.

It sounds as if someone just dropped a tricycle into a meat grinder. Im sitting inside a narrow conference room at a research facility in Bristol, Connecticut, chatting with Joseph Longo, the founder and CEO of Startech Environmental Corporation. As we munch on takeout Subway sandwiches, a plate-glass window is the only thing separating us from the adjacent lab, which contains a glowing caldera of plasma three times as hot as the surface of the sun.

What happens to airplanes when they die? Though it's fun to imagine them flying up to some big hangar in the sky, the truth is that of the 200 that are retired worldwide every year, most end up in scrap-metal graveyards. Some are even simply abandoned to rust next to landing strips, becoming the FAA equivalent of junked front-yard jalopies.