So, Dick Batt (Letters 15 June) has read James Lovelock's book on global warming: The Revenge of Gaia. But there are two sides to this argument.
While we can all accept that global warming occurs, the question is whether it is part of a 125,000 year natural cycle or whether anthropogenic greenhouse gases play a signicant part.
Unfortunately there are vested interests on both sides.
The inuence and funding of some environmentalists depends on keeping the public in a blue funk, while some industrialists would like to carry on pretty much as they are.
It is therefore important to read from more than one side - The Skeptical Environmentalist by Bjorn Lomborg, or something by professor Bob Carter of James Cook University might be a suitable counterbalance.
John Hounslow, 18 Peacock Close, Downend, Fareham, Hants, PO16 8YG