Smoking Clean Cars

Clean Diesel and Electric Roadsters are hitting the big leagues with Volkswagen and Tesla Motors, respectively.

[Sources: Popular Mechanics (VW) and Motor Trend (Tesla)]

It Does Grow On Trees!

Plants draw water up and out through their leaves. Scientists have figured out how to duplicate the minute structure of a plant to use this anti-gravity process to our advantage. It can be used to humidify, purify and modified to disperse heat.

[Source: Science Daily]

Plants also scrub carbon dioxide out of the air. A scientist wants to develop huge air filter "trees" that will trap CO2. What to do with it once captured seems to be the sticking point.

[Source: BBC News]