Green building & energy links, Feb 19

A bumper bunch of links today:

Video of Bill Gates talking about 'zero carbon' at the TED conference: TED
World's tallest building closed indefintely: Archinect
50 "must read" green engineering blogs: Top Online Engineering Degree
Passivhaus renovation of a Victorian terrace house: TreeHugger
Are the days of the cul de sac over? Treehugger
Looking at lights from space - a sign of progress or failure? Treehugger
Norway to build world's largest wind turbine: Inhabitat
The coming renaissance of electrical contractors: softwareadvice.com
Would you live in a shipping container? Inhabitat
Is the Living Building Challenge the toughest green building standard in the world? Jetson Green
UK boiler scrappage scheme a "success": Energy Savings Trust
Barack Obama's $5bn green home gets off to a slow start: Guardian
Loft insulation - Australia's burning issue: Guardian

...and lastly, officials in Tysons Corner, Virigina are thinking of letting developers build at higher densities if their buildings are greener - a concept known as 'planning gain', and something I wrote about in my first ever article for Construct Ireland.  See Green Building Law Update for more.