Blue-skies thinking

Science Week is being marked at the Natural History Museum with a series of talks about the stuff we breathe. We may complain about traffic fumes today, but in 1953 smog led to the deaths of 4,000 Londoners. Things have improved hugely since clean-air legislation. Speakers include Nigel Bell from Imperial College's environment office. They will outline research findings on pollution, and the improvements we're likely to see as new legislation comes into force.

Darwin Centre, Natural History Museum, Cromwell Road, SW7 (020-7942 5000). Fri 12-Thur 18 Mar, times vary, ends Fri 19 Mar, free.