13th February 2007: "Brimstone: heaven or hell in our cities?"

UK sulphur emissions peaked in around 1908. Since then, with the aid of catalytic converters, urban air quality has improved very greatly, although new challenges have emerged. One of the really interesting aspects of this story is however sulphur: the old dragon.

Sulphur dioxide is now largely a problem of the past in the UK urban context, although not globally. However, it is its more reduced forms (albeit at much lower concentrations) which might again bring this element to the fore in an urban air quality/health context. Possibly the dragon was not slain after all, but just sleeping......

Dr Simon Watts is Reader in Biogeochemistry at Oxford Brookes University, and an expert in air pollution. The discussion for this month's Cafe may range through acid rain, air quality, current pollution problems and possibly on to climate change - as the audience driving the forum, you will decide.

Come along and join us at 7pm in Blackwells Main Bookshop, Broad Street, Oxford.
No ticket, no booking, no scientific background required.