Page last updated at 10:08 GMT, Tuesday, 2 June 2009 11:08 UK

Cooling down trailer tents

Consumption is a way of life in the United States. Many campers resort to air-conditioning their pop-up trailer tents when it gets too hot in summer.

But in a suburb of Dallas, Roger Harrabin finds one camping enthusiast, Bob Pitney, whose outlook on climate change raises some interesting questions.

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