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Heaven and Earth: Global Warming, the Missing Science Review

Ian Plimer is a Professor of Geology with a background in mining. He is a strong independent thinker, with a particular flair for interdisciplinary integration and overview, although his books are a bit hard to read. They contain a lot of dense information, but are perhaps weak on highlighting what is more important, and at times a little too emotional and bulldozing for some.
This is a timely book that attempts to survey ALL the basic data and debate related to climate change, rather than cherry-picking solely in the interests of green ideology. The book is very similar to Lomborg's `The Skeptical Environmentalist' (with just as many back-up footnotes-over 2000-so at worst it is at least a useful reference for alterative views and debates).
There are serious claims in this book; a general one being that data and debate about climate change is being suppressed by green ideology. Here are some assertions:
* There is no scientific consensus on the causes of recent (~last 150 years) global warming.
* Data and debate from solar physics, geological, archaeological, and historical circles is ignored in the media and within the political process.
* Gross, unscientific, major distortions of data and debate is occurring, largely due to ideological agendas, and parallels Soviet Union agricultural science and policies.
* Amongst other examples, scientific fraud has been committed with relation to the `hockeystick' graph of Mann et al. regarding temperature in the last ~1000 years, which has been widely circulated (eg IPCC 2001), and which shows distorted temperature trends.
* The influence of changes particularly in the sun, and in cloudiness, cosmic rays and volcanoes on climate changes has been under-estimated.
* There is a correlation between changes in solar activity and earth temperatures, including in the last 150 years of warming.
* Recent global warming since about 1850 is minor and largely not related to human activities, but is being driven by the sun and is part of a natural climatic variation since the Little Ice Age.
* There has been no global warming since 1998 (at May 2009), and analysis of solar activity suggests a natural cooling trend in coming decades, which has already begun.
* Influence of increase in C02 level on temperature in the atmosphere tapers off once a certain level is reached. (Rather than `runaway greenhouse', we have 'atmospheric buffer')
* The `precautionary principle' is not a scientific principle, it is a social and political one (I concur).
* There is no such thing as a `tipping point' in science (I disagree-e.g. the term `catalyst' comes to mind).
* IPCC climate models do not accurately model observed temperature trends since 1998, undermining their projected global warming models.
* Computer models used by the IPCC are `computer games', as global climate trends are too big and complicated to meaningfully forecast.
* The global climate is too big for humans to have any meaningful effect.
The books strength is the variety of data, the weakness is the convoluted writing style. At worst, one might contend that Plimer is guilty of obfuscation, but at least there is a broad overview, including real gems you won't hear from extreme greens:
* the very small size of the Amazon rainforest during the last ice age,
* Strong legal disclaimers about climate projections from the very same agencies that want to enforce major legal changes using such data,
* the strong correlation between sunspots and earth temperature
* solar activity has increased in the last ~few hundred years
* that warm periods in human history generally occur with human prosperity,
* Siberian Soviet-age historical temperatures were fudged below -15C because towns received a vodka levy when -15C was reached,
* Parts of Greenland have been cooling since the early 20th century,
* The US, France, Italy, and UK squabbled over ownership of a new volcano in the Mediterranean in the 1800s, which then promptly sank beneath the ocean (which Plimer hopes will happen to global warming advocates).
* Global temperatures have been warmer on several occasions in the last several thousand years, with no adverse effects, rather, they generally correspond to human prosperity.
* C02 has been much higher in longer geological history, with no adverse effects.
* The use of the `precautionary principle' in banning DDT use resulted in an estimated 40 million deaths from malaria
* Ice is a rock
* Water vapour is the main greenhouse gas
* Many western cities have water shortages because new dams are not being built due to green politics,
* `Being creative and riding the waves of change is the only way we humans have survived', `sustainable living', on the contrary `is such that with the slightest change in weather, climate or politics, there is disease, mass famine, and death'.
Suffice to say in short review, there are some good examples of environmentally-driven distortion and cherry-picking of data, in the worst cases fraud (e.g. Mann's hockeystick), but I suspect, there is also errors on his side.
An example which bugs me: new, unpredictably/spontaneously generated changes and processes can produce large, longer term effects, (classic catastrophism versus uniformitarianism). However, Plimer states: "there is no such thing as a tipping point in science". If I read him right, this shows to me a basic limit of perception (what about e.g. catalysts and saturation points in chemistry?). Charles Lyell, one of the early uniformitarians, couldn't see the `catastrophes' written into rocks that were staring him in the face, (new, unpredictable changes, can produce large scale effects)- and neither could Charles Darwin (one of his few errors of judgement); I suspect that Plimer may have a similar data analysis problem (but this is just my opinion).
All in all a good overview, and although I'm not sure I agree with some of his assertions, I see a lot of value in the books' broader discussion of data and debate than is typically found amongst all the hot air that surrounds and distorts climate science and policy.

Heaven and Earth: Global Warming, the Missing Science Overview



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