upthehill

New research using nanocrystals can double the efficiency of PV panels. Continuing research could produce even higher efficiencies

The American NREL has developed a aircon system which is 50-90% more efficient than the current top-performing units. If aircon is unavoidable, it's a good idea to try to make it as efficient as possible.

There is an increasing groundswell of opinion that LEED is not all it's cracked up to be. From allowing certification of buildings with high toxicity levels, to meaningless tokenism, the US building sustainability evaluation methodology is coming in for criticism. There is another critical article here :- http://www.fastcompany.com/magazine/119/the-green-standard.html?page=0%2C0

Interesting article on sustainable building by Steve Mouzon. Don't be fooled by 'green bling".

Self healing concrete means longer life, fewer repairs and lower emissions - what's not to like?

Interesting information, with videos about how this was created.

This project educates people about water consumption they use when they consume specific items of food and drink. There are some very elegantly designed posters, and an iPhone app.

Interesting graphic showing global emissions, increase and decrease per country, and ranking from 2006-2007. The dark circles show emissions increases, the pale ones show decreases. The size of the circle shows the relative size of the percentage change.

I wonder what the current figures are?

Wow - what a cool way to green neglected areas of towns and cities! As long as kids don't throw them in places like your gutters...