Inspired by Paelestinian jarrah, the Nave Air Conditioning system is a wall made of terra-cotta that uses water and natural evaporation to cool down a room.

This diagram shows how a wind catcher creates positive pressure on the windward side and negative pressure on the leeward side and how in doing so cool fresh air is pulled in and circulates the hot stale air out, it does a good job showing this by being very simple to read and shows just the basics of how the process works

I live sunny south Florida, where the temperature rarely drops below 60 degrees during the day, and the humidity level in the summer is usually hovering at around 100%. Summers...

by: Arcfly

New-Delhi-based Ant Studio’s clay cooling installation is both beautiful and functional.

In this video I attempt to build an air conditioner out of clay! This is actually a traditional technique used to keep water cool in hot climates, but creative folks today are trying to rework this ancient water-cooling method into passive air cooling systems! The best part about this is they use no electricity, so are a eco-friendly solution to keeping your home cool in summer. Let me know what you think! Would you ever use this in your home?

Cheap, low-energy evaporative cooling devices are keeping water, food, people, and even whole buildings cool across India.

Summer is in full swing, and that means growers need to worry about protecting plants and greenhouse employees from brutal temperatures. No sweat! These product manufacturers have offerings to help beat the heat.

UPDATE: See the Watershed home in all its glory at the 2011 Solar Decathlon. This home placed 1st in the Solar Decathlon, also winning the Architecture category along the way. The original review of the model follows below. - For the upcoming 2011 Solar Decathlon, the team from the University of Maryland, College Park, is striving

Passive cooling systems are increasingly vital to a warming world. Here's how one research team hopes to harness ancient tech to do it.