Go, go (green) gadgets!

Here is another interesting story regarding ecology and green development I found in the METRO newspaper that I pick up on my way to work:

House that works like a living tree
A researcher invented a synthetic tree (shaped like a house) that also can get rid of CO2. Klaus Lackner, from Columbia University, answers our questions.

How does your invention work?
The “leaves” are made from a plastic material that absorbs CO2 when it is dry and releases it again when it is moist. Standing in the wind, the sorbent material loads up with CO2, it is then transferred into a chamber, from which the air can be removed and moisture is introduced. The plastic releases CO2 into the chamber, which is pumped out and compressed to liquid CO2.

Where exactly can we install them?
Anywhere, because the air mixes well and everywhere has the same CO2.

Also -- Self-erasable paper! Read more in the same article, here.