The Myth of the Global Cow

Posted by Martin Cohen

Data crunchers have started to attack farms on the basis of statistical creations such as ‘The Global Cow’. Of course, there’s no such thing. The sublimation of differences in concepts like the average cow, leaves cows and sheep who are helpfully and quietly grazing grass suddenly accused of inefficiently expropriating vast tranches of valuable land, while farmers keeping animals fed soya in sheds can be reinvented and presented as efficient and ‘climate friendly’. And yet summarised and simplified messages creatively abstracted from the data itself construct a global picture, skewed by preconceived ideas, and designed to influence policy decisions.

    • The idea of ‘the Earth's average temperature’ is also an exercise in mental gymnastics - which parts of the oceans are included - or of the atmosphere? Does it make sense to have hypothetical data points in uninhabited regions? Even NASA and the Met Office cannot agree. 

   • Food policy in particular always seem to consist of sharp, Manichean (good versus evil), divisions even as most things are nuanced and a matter of detail - and degree. Missing from both types of thinking is any acknowledgement that the experts behind the expert consensus are also political and ideological subjects, and the vast majority of respected science (or any research) is produced from a mainstream and shaped by the policy objectives of funders.   

But let’s just take up that idea of a ‘global cow’. Even small farms can be completely different in terms of differing habitats and differing good or really bad practices in one place. Last year I had a series of email exchanges with a Welsh couple in the Brecon Beacons (on the England/ Wales border) about their efforts to graze farm animals ‘sustainably’. The two explained how they have mountain grazing rights on the Brecon beacons and have cattle grazing an ancient hill fort, to preserve the archaeology from the incursion of scrub and to enhance the diversity of the grassland untouched by a plough for millennia, if at all. All their fields are natural pasture kept in a grazing rotation. One of the fields is an iron age enclosure and has never been ploughed in modern times! Yet now the call everywhere is to shun animal farming and rely solely on crops. 

The couple keep grassfed (Dexter breed, as in  the picture above) cattle and sheep and rare-breed pigs, all raised outdoors and supplemented  by a range of non-soya concentrates, and farm amazingly sustainably. They firmly believe that the sheer complexity of their farm demonstrates that the global environmentalist models about ‘Norm’ cannot possibly map onto reality anywhere on the planet. 

Instead, their farm is a case study in how the new ‘plant-based food’ movement risks upturning delicate relationships between humans and nature but also a more anthropological study in how apparently deeply-entrenched attitudes towards long-established activities and traditions can be rapidly changed by elite groups using sophisticated control of public information.

The Man who Invented Climate Change (and then disowned it)

Posted by Martin Cohen

The man who started it all off - Herbert Lamb. Source WP:NFCC#4

History, as ever gives an insight into the Climate Change debate. The historian of science, Bernie Lewin, has researched the views of the British scientist who for many years struggled to persuade governments that actually, yes, climate did change. Hubert Lamb, an academic and the founder of the influential Climatic Research Unit (better known by its acronym ‘CRU’) at the University of East Anglia in the UK, is conventionally credited with putting manmade Climate Change on the world agenda. He doesn't get many mentions though - because he came to detest the poltical abuses of his ideas.

Lamb was once described by one of his successors at the CRU, Trevor Davies ( probably self-servingly) as ‘the greatest climatologist of his time’. Davies credits him with ‘convincing the remaining doubters of the reality of climate variation on time-scales of decades and centuries’ and an obituary in Nature offers his great achievement as overturning the ‘old orthodoxy’ of climate stability. Other scientific admirers suggest that it was Lamb who first introduced the idea that climatic change has happened, and is still happening, on human time scales. But Bernie Lewin has no doubt that much of this is political fiction, noting that Lamb was far from the first to introduce the idea of a constantly changing climate. And where Lamb’s successor at his climate research centre found it, ‘ironic’ that even as the world became ‘acutely aware of global climate change’, Lamb maintained a guarded attitude to the importance of greenhouse warming, Lewin sees nothing odd in the position of a scientist advocating the idea of natural climate change being ‘guarded’ about the evidence of a global human influence. Awareness of past variability would rather tend towards scepticism of claims to have identified a single, new and extraordinary cause of climate change.

Hubert Lamb, in fact, was an old-school meteorologist, and there was something of a clash of cultures between those like him brought up on geology and weather records, and the new kinds of ‘climate scientists’ only recently tempted by research money into applying their mathematical skills to the natural world. Lamb expressed open scepticism of the theoretical physics used now to predict future climate trends noting that often the models failed to match reality. He argued for:

* the existence of negative feedbacks dampening warming trends where the climate modellers allowed only positive feedbacks amplifying them;
* that 20th century climate variation was better explained by natural factors (such as solar and volcanic effects);
* wonders how accurate the figures relied on for identifying relatively tiny temperature trends even were.

Such doubts led him to spend time analysing the political impetus for the new climate science, including vested interests, and the reasons why climate modelling in particular received so much support. Lamb completed his memoirs in 1997, just a few months before Kyoto, the international summit in which man-made Climate Change was given it preeminent role. In these memoirs he laments:

‘It is unfortunate that studies produced nowadays treat these and other matters related to changes of climate as if they are always, and only, attributable to the activities of Man and side-effects on the climate.’

This post is lightly adapted from Martin Cohen's book:
Paradigm Shift: How expert opinions keep changing on life, the universe, and everything

---

BBC propaganda

BBC propaganda

An alarming insight into how the BBC operates?
 

 

  Who's Churning the BBC Machine?

 • 'How the BBC became a propaganda machine for climate change zealots 
 - as recounted by its former news frontman, Peter Sissons

Based on  the Daily Wail story which in turn drew on Peter Sissons's memoirs, with additional comments by Pi editors.

Sissons diagnoses it as 'political correctness'. Worrying about manmade climate change was an incontrovertible duty - a view also taken, for example, at the Guardian and the Times newspapers. But Sisson's writes:

'From the beginning I was unhappy at how one-sided the BBC's coverage of 
the issue was, and how much more complicated the climate system was than 
the over-simplified two-minute reports that were the stock-in-trade of 
the BBC's environment correspondents.

These, without exception, accepted the UN's assurance that 'the science 
is settled' and that human emissions of carbon dioxide threatened the 
world with catastrophic climate change. Environmental pressure groups 
could be guaranteed that their press releases, usually beginning with 
the words 'scientists say..'. would get on air unchallenged.

On one occasion, an MP used BBC airtime to link climate change doubters 
with perverts and holocaust deniers, and his famous interviewer didn't 
bat an eyelid.

On another occasion, after the inauguration of Barack Obama as president in 2009, the science correspondent of Newsnight actually informed viewers: 
'scientists calculate that he has just four years to save the world'. What she didn't tell viewers was that only one alarmist scientist, NASA's James Hansen, had said that.

My interest in climate change grew out of my concern for the failings of 
BBC journalism in reporting it. In my early and formative days at ITN, I 
learned that we have an obligation to report both sides of a story. It 
is not journalism if you don't. It is close to propaganda.