Tag Archive

Hydropower Presents a Host of Tough Choices

By editor

There’s a lot of agreement that the world has to move more quickly toward renewable energy sources, but there’s an equal amount of controversy about each one – solar (too expensive), wind (too intrusive), geothermal (too expensive), biofuels (damaging food production) and ocean energy (not ready for prime time). But hydropower – the energy... Read More...

Mysterious Water Vapor Drop in Stratosphere Slows Global Warming

By editor

Scientific American's short article on the recent drop in water vapor in the stratosphere mainly tells us how little we really know about global warming, even as vast glaciers melt and the oceans warm and rise. Read More...

Three New Materials that will Change Building Envelopes

By editor

This time we’re presenting three materials that are going to have a big impact on the design of envelopes for sustainable buildings. The first is a Green Cement that is made as a precipitate of processed CO2. Another is Nansulate®, a coating that has excellent thermal resistance properties and also provides mold protection. The... Read More...


Water: Our Most Precious Resource: by Marc Devilliers. This highly readable report on the looming global water crisis is amazingly informative on water issues around the world from China to Texas.