Guardian Unlimited

22.04.2008 Two leading voices in the fight against climate change are at loggerheads over the weight given to "food miles" in a UK labelling system designed to encourage consumers to choose low-carbon products in shops and supermarkets.

22.04.2008 One of the three writers from Thailand whom the giant retailer Tesco is trying to suppress with serial libel writs has arrived in London at the invitation of the free speech body Index on Censorship.

21.04.2008 Seven African governments and the world's largest banks and construction firms meet in London today to plan the most powerful dam ever conceived - an $80bn hydropower project on the Congo river which supporters say could double the amount of electricity available on the continent.