On hearing that Lord Lawson is appearing on channel 4 news this evening, I felt compelled to contact them and express the following after his previous appearances on TV:

Dear Channel 4 news

Could I please request that appropriate rigour be used in questioning the views of Lord Nigel Lawson on this evening’s programme when allowing him to speak on the subject of climate change. His involvement with oil companies who fund much of the denialist work in preventing action on CO2 emissions reduction has now been well documented: http://www.leftfootforward.org/2009/11/oil-links-of-tory-climate-denial-grandees/
It is dangerous to allow such people to continue their self-interested campaigns to promote doubt in the well-supported, peer-reviewed science of climate change when the lives of billions of people all over the globe are at stake. Please also see this article: http://www.newscientist.com/article/dn18279-deniergate-turning-the-tables-on-climate-sceptics.html which is far more damaging to the sceptics’ arguments than anything that has been discovered about climate scientists.
I trust that you will consider such points and ensure that the integrity of your news coverage is not damaged by allowing oil industry lobbyists an easy ride on this crucial issue.
Yours faithfully

Joe Peacock
Birmingham Friends of the Earth

Maybe you would like to write something similar to news@channel4.com