SIR - It is vital Malcolm Wood's incredible comments about climate change (T&A, November 15) are dismissed as science fiction in order to maintain our focus on dealing with this environmental catastrophe.

His claim that: "there is no concrete evidence mankind is to blame" for climate change is wrong. Every major science academy worldwide accepts that the carbon emissions caused by our industrialisation have raised atmospheric carbon concentrations to their highest level for three million years.

These human greenhouse gases' are pushing up global temperatures with unprecedented speed, melting our glaciers and ice caps, altering sea currents and changing the planet's climate. All of this has been proven exhaustively by scientists worldwide and we must act now to stabilise the Earth's climate before it's too late.

Bradford should play its part because most of the carbon up there has been produced by industrialised nations like the UK.

British citizens still emit nearly four times as much carbon dioxide per head compared to the Chinese and, amazingly, our emissions are rising.

We can afford to lead by example as the best means of getting the post-Kyoto agreements needed to deal with climate change.

Coun Kevin Warnes (Green, Shipley) Moorhead Terrace, Shipley