Letter: Bewitching ideas

Those attending the climate change talks in Cancun (your reports) based their assumptions on the "cause and effect" of the increase in CO2 to a rise in temperatures as if it was a mathematical certainty, so much so that they believe it is a straightforward equation; whereas only last week the Met Office claimed that the present cold spell was the result of pollution in the atmosphere reflecting the sun's heat away from the earth.

In the Middle Ages, their ancestors blamed any climate change on witchcraft, and even burnt some witches at the stake to deter others from upsetting nature. However, today's Cancunists probably consider that burning some of us at the stake would create pollution so instead they prefer to drain us of our money.

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BRIAN CHRISTLEY

Bryn Gwyn

Abergele, Conwy