IF you live in a cocoon, you get a strange view of the world.

Anthony Weeden may say (letters, December 30) that global temperatures have fallen since 1998, but are they down below 1997 levels yet?

He may say that politicians have been involved in the climate change debate since the 1970s, but where’s his evidence? Which politicians were talking about it in those days? What did they say? How many showed the concern David Cameron did in 2006, making a well-publicised visit to the Arctic within months of becoming Leader of the Opposition?

He describes Al Gore’s The Inconvenient Truth as science fiction. Doubtless he feels the same about the case for global warming David Attenborough made in the last of the Frozen Planet series. And about warnings from climate scientists around the globe. To say nothing of eye-witness evidence of receding ice and rising water levels from places as diverse as Russia, Greenland, Nepal, Bolivia and Bangladesh.

Mr Weeden may seek to enlighten us with the view from his cocoon, but there is too much he doesn’t see.

Eric Alexander, Dovecot Road, High Wycombe