Customer Reviews
A Fabulous Grumpy Old Man - By: Brownbear101, 23 Oct 2008 
I remember first hearing James Lovelock's Gaia theory (that the Earth is a self regulating entity) on the BBCin the 1970's & thinking it was quite convincing. I was really disappointed reading this book to find that he seems to have very little additional evidence for Gaia after nearly 40 years. This lack of hard science behind Gaia undermines the authority of the book. As a result it reads like a fabulous & fabulously well researched grumpy old man rant.
Lovelock has a go at just about everything - population growth, climate change, nitrates, the green movement & so on. His is a counsel of almost complete despair, he has only two positive suggestions to make, one is to support nuclear energy & the other is to reduce the Earth's population from 6bn to 1.5bn.
He is very lucid on the problems, even if not fully convincing on the Gaia-ness of them, but I can see that if you were a policymaker this book would be of no help at all & frequently it's exasperating. He's an important scientist, so it's a book that should be read, but don't expect to come away any clearer about how to shape the future.
Essential Reading - By: Bruce Gregory, 11 Apr 2008 
We should salute the (now) 89 -year-old author, James Ephraim Lovelock (Ephraim is Hebrew for fruitful): an independent, dissenting voicein science. Rebelling against reductionist philosophies, he took an inclusive, systems view of the planet, publishing his Gaia Hypothesisin 1970. It took over 30 years for the international scientific community to come round.
Having studied chemistry at Manchester U & received his PhDin medicine at London U, Lovelock was engagedin the 1960s by NASA to find ways to detect life on Mars. He realized that life would influence the atmosphere & designed an instrument to detect trace gases. Thinking about the reason why Mars is so barren & Earth so fruitful, he arrived at his Hypothesis.
In brief the Hypothesis stated that the Earth is not just a rock that happens to have things living on it: it is a complex interacting system of soil, sea, atmosphere & living things that shows a tendency to keep itself stablein a way that supports life. In particular this complex web has acted to hold temperature within a narrow range over hundreds of millions of years even as the sun warms & the planet wobblesin its orbit.
Lovelock calls this system Gaia after the ancient Greek goddess of the Earth & persistsin referring to Gaia as a person who acts with intent. Some find this annoying & unscientific. This reader accepts it as poetry & metaphor.
In summary,in his latest book, Lovelock revisits his Hypothesis & argues that:
1. Not only is climate change an impending disaster but an irreversible tipping point may already have been reached
2. The single most important step to take now is a major switch to nuclear power
3. Too many people simply do not understand the issues correctly: the well-meaning Greens are also at fault
4. Gaia's revenge will be to restore the equilibrium of the planet by removing most of the human population
On page 1 he states bluntly: `we are now so abusing the Earth that it may..move back to the hot state it wasin 55 m years ago & most of us & our descendants will die.'
He starts with a by-now familiar history of the issue of climate change & goes on to say: ` we are now approaching one of those tipping points & (are) like passengers on a small pleasure boat sailing quietly above the Niagara Falls, not knowing that the engines are about to fail.'
He reminds us how huge are the effects of what seem like minor temperature shifts: only 3 degrees separates us from the last ice age; the same scale of increase now seems likely this century: very rapid change indeedin geological time.
The tipping point factors of climate change are by now well-known:
1. The poles melt & less sun is reflected: this seems to be happening now
2. The bogs thaw & methane is released (a far worse greenhouse gas than CO2)
3. The seas warm & the algae stop fixing carbon & making clouds
4. The forests bake & catch fire
5. Methane clathrates are released from the deep sea bed
What makes Lovelock distinctive is his Gaian perspective. He argues that:
1. A `cold' planet' is healthier than a `hot' one. If the Earth was 5 C cooler than now (as it has often been) , there would be glaciers down to the English Channel. But the Atlantic would be teeming & Africa would be a green garden.
2. We are mistaken to think that the Earth isin a Goldilocks orbit. It started out too cold for life. The sun is slowly warming & now the Earth is becoming too hot. So Gaia keeps tilting to coldness. There have been 11 recent ice-agesin the British Isles. We arein the `fever' of a warm interglacial & would normally be heading to the `cure' of the ice-age.
3. But man has disrupted the balance, not just by burning fossil fuel but also by replacing forest with farm. Gaia will do what it must to restore the balance.
4. The underlying problem is that the sustainable human population is probably under 1 billion. Today it is 6 billion, forecast to be 11 billion by 2050.
His argument for nuclear power is simple: all the other solutions produce lots of CO2 or don't work well and/or take too long (new approaches such as carbon sequestration take 20-40 years to mature):
1. Nuclear power is tried, tested & economical & produces very little CO2
2. Wind power is unreliable & costly. It would take 56000 large wind-mills plus fossil fuel back-up just to replace current nuclear capacity (20% of our total needs)
3. Solar is poor for the UK: unreliable & 3x more expensive than conventional methods
4. Wave power apart from a Severn barrage is expensive .....
And so on.
He believes that popular misconceptions of cancer risk militate against nuclear. (It's arguably worse than that: the UK government has ducked the issue for over a decade. Onlyin the last few months, stampeded by the risk that (a) the lights will go off around 2012 and/or (b) we will depend on a hostile Russia for gas, has the UK government moved). Lovelock bemoans the fact that our political classes do not have any feel for nature or the planet. (They also know little of science or business & there is often a grim determination among temporary ministers to avoid difficult decisions.)
He feels that the Green movement has lost its way: for example by wanting `sustainable development' when much more radical action is needed & for promoting low-productivity organic farming when this means eating up yet more of the countryside. This is putting a lifestyle choice ahead of the planet. He detests the Green wish to cover the land with tens of thousands of windmills.
He offers several examples of similarly faulty decisions: including the massive error of banning DDT. Because the vocal western middle-classes did not want pesticidein its food, Africans died. Yet the use of DDT to kill human disease vectors posed little food risk: it was abuse of DDT by farmers.
Lovelock explores some blue-sky technical fixes to global warming: planetary sun-shades, for example, but without real enthusiasm. Perhaps because it would distract from his here & now message: go nuclear.
So are his arguments complete & wholly compelling? No. The central question of power sources deserves a large bookin its own right. Do you have to accept Gaia to believe that climate change is likely to destroy us? No. Do you have to accept Lovelocks' wistful argument for a countryside free of windmills? No.
But although bits of the book can be faulted, the whole seems to me to succeed. It is a well-written, lively, provocative book on a critical subject & a key idea of our times written by one our most gifted & original thinkers.
****
It's nice to know that when climate Armageddon arrives: the poles & the permafrost melt, the bogs & tropics catch fire & much of Southern Europe, Asia, Africa & the USA & Australia starve & fry, the Atlantic Conveyor will also switch off resultingin a local temperature drop. The result could well be that the UK climate remains equable. On the other hand the UK will be a shrunken archipelago, with our major cities submerged, tens of millions of people looking for a home & many millions of refugees landing on our beaches.
Sentimental nonsense - By: Mr. T. J. Denman, 23 Mar 2008 
Nature is simply indifferent to our fate: it is neither malicious, nor benevolent. If humanity's time is up, it's up. We won't be the first species to die, nor the last. Let the polar bears look after themselves. Carpe diem.
Forget Windfarms - Go Nuclear! - By: Mr. Nicholas J Robertson, 11 Feb 2008 I first read "The Revenge of Gaia" two years ago, when it was published. By early 2006, of course, we were all becoming aware of a progressively strident chorus about the imminent catastrophe that global warming was going to cause & how there was a scientific consensus on the matter. Lovelock was the first book I read on the subject.
I was suitably alarmed by Lovelock's analysis, & particularly by his identification of "tipping points", whereby a relatively modest increasein temperature would lead to positive feedbacks, e.g. from a hotter Amazon rainforest dying & releasing its stored CO2, by a greening Greenland absorbing rather than reflecting heat, & thus causing further, & unstoppable, global warming. Lovelock envisaged humanity reduced to a few million "breeding pairs" on the Arctic & Antarctic fringes.
Two years on, I have re-readin a more critical way & have a number of observations about the way Lovelock states the case for there being a major & immediate problem.
Firstly, Lovelock makes no reference to any experimental work to justify the feared quantitative relationship between a risein "greenhouse gases" & average global temperature. There is much reference to computer modelling - Lovelock is a keen computer modeller, & the Gaia theory is supposedly validated by it - & correlations. (What experimental, as opposed to modelling, work has been done? If you have any recommendations do let me know via a "comment".)
Secondly, he makes some sweeping leaps of logic. Having stated that climatic prediction is easier than forecasting the weather on the basis that we an predict that it will be colderin Berlin on December 2010 than it wasin the previous July, he states that an increasein CO2 to 500ppm will accompanied by "profound climate change".
I was struck by his personal reliance on Michael Mann's so-called "hockey stick" graph, adopted uncriticallyin the 2001 IPCC 3rd Report, which had been pretty thoroughly discredited by the time the book was written (and which has all but disappeared from the 2007 IPCC 4th Report). If his fear of man made global warming is based primarily on this work, then I am reassured that it is probably not as bad as it seemed.
Lovelock quotes Dick Taverne (March of Unreason) warmly for criticising the greens' "impractical romanticism". I would disagree that that is a fair synopsis of Taverne's book, butin any casein his recommendation of the adoption of the "precautionary principle" he ignores one of Taverne's principal criticisms, that overcaution without a scientific basis threatens economic progress that can lift millions out of poverty.
Finally, Lovelock's arguments encompass warming & cooling trends over a variety of timescales, from the geological epochs, the last 100,000 years & the last hundred. He states that we arein an interglacial period, then that it has been hotterin he past. I found it hard to identify a patternin this. He talks about a gradually warming sun, but not of any other cycles that might affect the sun's warming of the Earth. Svensmark's (more recent) book provides a coherent explanation of solar & galactic effects, & I am aware of others.
That having been said, the book is evidence that, backin 2005, Lovelock & others predicted that warming was occurring, (however it was caused). He predicted the opening of the North-West Passage, which indeed did happen this year. CO2 & CH4 may be contributing to this, & (by my reading at least) science cannot reliably tell us how much & to what eventual effect. What, then, of what Lovelock recommendations as to what we do about it?
I am struck, on re-reading Lovelock, at how little notice the global scientific consensus & its British offshoots have taken of his recommendations: forget wind turbines, go nuclear. The downsides of wind turbines have been covered more recently, & extensively, by the sceptical Booker & North. Lovelock writes on the basis that we need technological solutions to manage a "sustainable retreat" to a world living within Gaia's means, ideally with just 500 to 1,000 million people - he quite clearly hankers after the "idyll" of 1800AD. (1800ADin England might have been bearable for Jane Austen, great for Mr Darcy, but for the rest of us...?) I fear he underestimates the difficulty of making nuclear fusion a viable solution, & even of using plutonium for fission reactors, but there is much to be said for trying if you think that CO2 emissions are going to destroy life on the planet. Lovelock also advocates the Severn Tidal Barrage, & one wonders why this proven & predictable technology is not being implemented instead of the plan for thousands of off-shore wind turbines. Some of his other sustainable retreat solutions are less appetising - notably the suggestion that we should synthesize our food so that more of the planet can be allowed to revert to the wild.
Lovelock's book is short & well written. The courteous wayin which he refers to global warming "sceptics" & other opponents is commendable, & is quite unusualin this polarised debate between "alarmists" & "deniers". His summary of possible positive feedbacks is compelling (in a frightening way) irrespective of the extent to which warming might be being drivenin the first instance by man made or other effects, & his arguments as to which alternative energy sources to pursue are delivered with scientific objectivity. As to the extent to which he represents that there is an immediate & catastrophic problem, however, the way that Lovelock rubbishes the over-reaction to the fear of acid rain is illuminating. "It is", he says, "all to easy it seems to lose our sense of proportion." Consumed by the Gaia theory that he finds difficult not to imbue with new-age spiritualism despite his rational scientific basis, it is possible that Lovelock has done so himself.
Essential - By: A. walker, 05 Jan 2008 
This book served as my introduction to the concept of Gaia. A friend suggested I should read it & politely I agreed. Quite simply, Lovelock's arguement makes a lot of sense & the messages conveyed within the volume should be considered by all. Especially politicians & (well meaning) greens. Only this week the news was dominated by debate regarding a new fossil fuel power station. This book clearly explains why this must not happen (ever) & presents the alternatives available now & those that will become soin our lifetimes. Lovelock really puts current environmental issues into context. An excellent read & with content that will touch the lives of every human being, present & future. READ THIS BOOK!
