Whilst researching the Three Gorges Dam for a presentation I have in a few weeks, I came across this talk by the photographer Edward Burtynsky, taken from the excellent TEDTalks series.

I found it pretty terrifying. Familiar too in the case of Shanghai.

But inspiring too – a single person can make a difference.

Visit www.worldchanging.com.

On a related theme, there’s this:


Here’s one of the videos from his series – thanks to Stu, and my brother, for the tip-off

Now please excuse me whilst I wind up my Macbook’s spring.