British Airways has launched a new carbon offset scheme that finances clean energy projects in developing countries. Customers offsetting flight emissions will support a wind farm in one of the poorest regions of China and run-of-the-river hydro-electric plants in China and Brazil.

Travellers can pay for the offset when they buy flights. British Airways will also back work led by Cambridge University into the non-CO2 effects of aviation.

See http://www.ba.com.