William Kamkwamba on building a windmill

The Society held their meetings in Great Windmill Street, Soho, central London's entertainment district.

For example, the Windmill Hill culture now serves as a general label for several different groups that occupied southern Britain during the Neolithic.

WK In fact, a design of the windmill that was in the book, it has got four ah three blades, and mine has got four blades.

When he was just 14 years old, Malawian inventor William Kamkwamba built his family an electricity generating windmill from spare parts, working from rough plans he found in a library book.

During the ill fated Copenhagen climate summit in December 2009, Denmark s capital city was plastered with slick ads urging the delegates to make a strong deal paid for by Vestas, the world s largest windmill producer.

At age 14, in poverty and famine, a Malawian boy built a windmill to power his family's home. Now at 22, William Kamkwamba, who speaks at TED, here, for the second time, shares in his own words the moving tale of invention that changed his life.

The cost will be 1 billion, but the EU says that this is incredibly cheap when compared to the cost of inaction on climate change, which will run into the trillions. It should be obvious that the 1 billion windmill doesn t negate the trillions of dollars of damage from climate change that we still have to pay by the end of the century.