Sir - Michael Tyce (Letters, November 30) deserves support for his stand against the notion that global warming is man-made. There has, and always will be, climate change, hence global warming or cooling, caused by the variation of ever-dynamic solar activity; if the sun sneezes we all catch cold!

It is a scandalous waste of the nation's intelligentsia who sit day-by-day getting their computers to generate spurious data and predictions to support the carbon clap-trap theories of global warming, rather than devoting their skills to research on far more beneficial problems such as cancer and Aids.

Gareth T Williams, Chalgrove