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Showing posts with label climate. Show all posts
Showing posts with label climate. Show all posts

Tuesday 24 November 2015

There’s a population crisis all right. But probably not the one you think

While all eyes are on human numbers, it’s the rise in farm animals that is laying the planet waste

 
‘By 2050 the world’s living systems will have to support about 120m tonnes of extra humans, and 400m tonnes of extra farm animals.’ Illustration by Nate Kitch


GeorgeMonbiot
 in The Guardian


This column is about the population crisis. About the breeding that’s laying waste the world’s living systems. But it’s probably not the population crisis you’re thinking of. This is about another one, that we seem to find almost impossible to discuss.

You’ll hear a lot about population in the next three weeks, as the Paris climate summit approaches. Across the airwaves and on the comment threads it will invariably be described as “the elephant in the room”. When people are not using their own words, it means that they are not thinking their own thoughts. Ten thousand voices each ask why no one is talking about it. The growth in human numbers, they say, is our foremost environmental threat.

At their best, population campaigners seek to extend women’s reproductive choices. Some 225 million women have an unmet need for contraception. If this need were answered, the impact on population growth would be significant, though not decisive: the annual growth rate of 83 million would be reduced to 62 million. But contraception is rarely limited only by the physical availability of contraceptives. In most cases it’s about power: women are denied control of their wombs. The social transformations that they need are wider and deeper than donations from the other side of the world are likely to achieve.

At their worst, population campaigners seek to shift the blame from their own environmental impacts. Perhaps it’s no coincidence that so many post-reproductive white men are obsessed with human population growth, as it’s about the only environmental problem of which they can wash their hands. Nor, I believe, is it a coincidence that of all such topics this is the least tractable. When there is almost nothing to be done, there is no requirement to act.

Such is the momentum behind population growth, an analysis in the Proceedings of the National Academy of Sciences discovered, that were every government to adopt the one-child policy China has just abandoned, there would still be as many people on Earth at the end of this century as there are today. If 2 billion people were wiped out by a catastrophe mid-century, the planet would still hold a billion more by 2100 than it does now.

If we want to reduce our impacts this century, the paper concludes, it is consumption we must address. Population growth is outpaced by the growth in our consumption of almost all resources. There is enough to meet everyone’s need, even in a world of 10 billion people. There is not enough to meet everyone’s greed, even in a world of 2 billion people.

So let’s turn to a population crisis over which we do have some influence. I’m talking about the growth in livestock numbers. Human numbers are rising at roughly 1.2% a year, while livestock numbers are rising at around 2.4% a year. By 2050 the world’s living systems will have to support about 120m tonnes of extra humans, and 400m tonnes of extra farm animals.

Raising these animals already uses three-quarters of the world’s agricultural land.A third of our cereal crops are used to feed livestock: this may rise to roughly half by 2050. More people will starve as a result, because the poor rely mainly on grain for their subsistence, and diverting it to livestock raises the price. And now the grain that farm animals consume is being supplemented by oil crops, particularly soya, for which the forests and savannahs of South America are being cleared at shocking rates.

This might seem counter-intuitive, but were we to eat soya rather than meat, the clearance of natural vegetation required to supply us with the same amount of protein would decline by 94%. Producing protein from chickens requires three times as much land as protein from soybeans. Pork needs nine times, beef 32 times.

A recent paper in the journal Science of the Total Environment suggests that our consumption of meat is likely to be “the leading cause of modern species extinctions”. Not only is livestock farming the major reason for habitat destruction and the killing of predators, but its waste products are overwhelming the world’s capacity to absorb them. Factory farms in the US generate 13 times as much sewage as the human population does. The dairy farms in Tulare County, California, produce five times as much as New York City.

Freshwater life is being wiped out across the world by farm manure. In England the system designed to protect us from the tide of slurry has comprehensively broken down. Dead zones now extend from many coasts, as farm sewage erases ocean life across thousands of square kilometres.

Livestock farming creates around 14% of the world’s greenhouse gas emissions: slightly more than the output of the world’s cars, lorries, buses, trains, ships and planes. If you eat soya, your emissions per unit of protein are 20 times lower than eating pork or chicken, and 150 times lower than eating beef.

So why is hardly anyone talking about the cow, pig, sheep and chicken in the room? Why are there no government campaigns to reduce the consumption of animal products, just as they sometimes discourage our excessive use of electricity?

A factory farm in Missouri, USA. ‘Why is hardly anyone talking about the cow, pig, sheep and chicken in the room?’ Photograph: Daniel Pepper/Getty Images

A survey by the Royal Institute of International Affairs found that people are not unwilling to change diets once they become aware of the problem, but that many have no idea that livestock farming damages the living world.

It’s not as if eating less meat and dairy will harm us. If we did as our doctors advise, our environmental impacts would decline in step with heart disease, strokes, diabetes and cancer. British people eat, on average, slightly more than their bodyweight in meat every year, while Americans consume another 50%: wildly more, in both cases, than is good for us or the rest of life on Earth.

But while plenty in the rich world are happy to discuss the dangers of brown people reproducing, the other population crisis scarcely crosses the threshold of perception. Livestock numbers present a direct moral challenge, as in this case we have agency. Hence the pregnant silence.

Eating less meat key to curbing climate change


People are more likely to back policies to curb meat eating for health and climate reasons, Chatham House survey suggests


 

Meat production produces 15% of all greenhouse gases. Photograph: Alamy


Damian Carrington in The Guardian



Taxing meat to simultaneously tackle climate change and improve global health would be far less unpalatable than governments think, according to new research.

Meat production produces 15% of all greenhouse gases – more than all cars, trains, planes and ships combined – and halting global warming appears near impossible unless the world’s fast growing appetite for meat is addressed.

The new analysis says this could be done through taxes, increasing vegetarian food in schools, hospitals and the armed forces and cutting subsidies to livestock farmers, all supported by public information campaigns.

The research, from the international affairs thinktank Chatham House and Glasgow University, involved surveys and focus groups in 12 countries and found that even measures restricting peoples’ behaviour could be accepted if seen as in the public interest, as was seen with smoking bans.

“Governments are ignoring what should be a hugely appealing, win-win policy,” said lead author Laura Wellesley, at Chatham House.

“The idea that interventions like this are too politically sensitive and too difficult to implement is unjustified. Our focus groups show people expect governments to lead action on issues that are for the global good. Our research indicates any backlash to unpopular policies would likely be short-lived as long as the rationale for action was strong.”

Increasing appetite for meat and population growth in developing countries mean global meat consumption is on track to increase 75% by 2050, which would make it virtually impossible to keep global warming below the internationally-agreed limit of 2C.

Meat consumption is already well above healthy levels in developed nations and growing fast in other countries, and is linked to rising rates of heart disease and cancer. To get to healthy levels, US citizens would need to cut the meat they eat by two-thirds, those in the UK by a half and those in China by a third.

If the world’s population cuts to healthy levels of meat consumption – about 70g per day – it would reduce carbon emissions by an amount equivalent to annual output of the US, the world’s second biggest polluter.

The UN climate change summit begins in Paris on 30 November, where the world’s nations aim to seal a deal to tackle climate change.

Most countries have already submitted pledges to cut their emissions, but they are not enough to keep warming below dangerous levels. Cutting meat eating to healthy levels would make up a quarter of that shortfall and is very low cost way of curbing emissions, according to the report, but action to achieve this is non-existent.

Previous calls to cut meat consumption, from the chief of the UN’s climate science panel and the economist Lord Stern, or to tax it, have been both rare and controversial.

“We are not in any way advocating for global vegetarianism,” said Wellesley. “We can see massive changes [to emissions] from just converging around healthy levels of meat eating.” She said raising awareness of the impact on the climate from meat production was the first step, but was unlikely to shift diets by itself.

“The level of awareness is very low, indeed in China it is almost non-existent,” said Catherine Happer, at Glasgow University. She said people in the 36 focus groups viewed meat taxes as the most effective, if unpopular, but that cutting subsidies for meat production was seen as both effective and popular.

“An awful lot of people were surprised that there were subsidies at all,” she said. “They felt, particularly in the US, that governments had propped up a very unhealthy food market.” Livestock subsidies in the 34 OECD nations alone were $53bn in 2013, including an average of $190 per cow. People also said any government action must avoid disadvantaging poorer citizens.

Prof Greg Philo, also at Glasgow University, said the key was “creating a new public understanding that industrial production of meat is not only dangerous to your own health but to human ecology as a whole.”


Animal rights organisation Peta’s climate message in Munich, Germany, aims to raise awareness of the link between climate change and the consumption of meat. Photograph: Mathias Balk/Alamy Stock Photo



Clare Oxborrow, a campaigner at Friends of the Earth, said: “Meat consumption can no longer be ignored in the climate debate – shifting diets to less meat and more plant proteins will be crucial. The government must stop using consumer backlash as an excuse for inaction”.

The reductions mapped out by the report would not reduce the size of the global meat industry, the researchers said, because rising population is pushing up demand, but it would significantly slow its growth.

They also said efforts to make meat production greener could cut emissions by up to a third, but that this would be swamped by growing demand if action was not taken. Meat eating has plateaued in recent years in richer nations, but is growing fast in developing countries.

Previous studies have calculated that, on current trends, agricultural emissions will take up the entire world’s carbon budget by 2050, meaning every other sector, including energy, industry and transport, would have to be zero carbon, a scenario described as “impossible”.

Meat production produces greenhouse gases via the methane emitted by livestock, the cutting down of forests for pasture, the production of fertiliser for feed crops and the energy and transport used by farmers. Beef is responsible for far higher emissions than chicken or pork.

None of the report’s authors are vegetarians, but Rob Bailey, from Chatham House, said: “Having worked on this project, I have drastically reduced my meat consumption – I now eat it once a month.”

Wednesday 17 June 2015

The Pope can see what many atheist greens will not

George Monbiot in The Guardian



Who wants to see the living world destroyed? Who wants an end to birdsong, bees and coral reefs, the falcon’s stoop, the salmon’s leap? Who wants to see the soil stripped from the land, the sea rimed with rubbish?

No one. And yet it happens. Seven billion of us allow fossil fuel companies to push shut the narrow atmospheric door through which humanity stepped. We permit industrial farming to tear away the soil, banish trees from the hills, engineer another silent spring. We let the owners of grouse moors, 1% of the 1%, shoot and poison hen harriers, peregrines and eagles. We watch mutely as a small fleet of monster fishing ships trashes the oceans.

Why are the defenders of the living world so ineffective? It is partly, of course, that everyone is complicit; we have all been swept off our feet by the tide of hyperconsumption, our natural greed excited, corporate propaganda chiming with a will to believe that there is no cost. But perhaps environmentalism is also afflicted by a deeper failure: arising possibly from embarrassment or fear, a failure of emotional honesty






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FacebookTwitterPinterest ‘We have all been swept off our feet by the tide of hyperconsumption, our natural greed excited, corporate propaganda chiming with a will to believe that there is no cost’.

I have asked meetings of green-minded people to raise their hands if they became defenders of nature because they were worried about the state of their bank accounts. Never has one hand appeared. Yet I see the same people base their appeal to others on the argument that they will lose money if we don’t protect the natural world.

Such claims are factual, but they are also dishonest: we pretend that this is what animates us, when in most cases it does not. The reality is that we care because we love. Nature appealed to our hearts, when we were children, long before it appealed to our heads, let alone our pockets. Yet we seem to believe we can persuade people to change their lives through the cold, mechanical power of reason, supported by statistics.

I see the encyclical by Pope Francis, which will be published on Thursday, as a potential turning point. He will argue that not only the physical survival of the poor, but also our spiritual welfare depends on the protection of the natural world; and in both respects he is right.

I don’t mean that a belief in God is the answer to our environmental crisis. Among Pope Francis’s opponents is the evangelical US-based Cornwall Alliance for the Stewardship of Creation, which has written to him arguing that we have a holy duty to keep burning fossil fuel, as “the heavens declare the glory of God; and the firmament proclaims his handiwork”. It also insists that exercising the dominion granted to humankind in Genesis means tilling “the whole Earth”, transforming it “from wilderness to garden and ultimately to garden city”.

There are similar tendencies within the Vatican. Cardinal George Pell, its head of finance, currently immersed in a scandal involving paedophile priests in Australia, is a prominent climate change denier. His lecture to the Global Warming Policy Foundation was the usual catalogue of zombie myths (discredited claims that keep resurfacing), nonsequiturs and outright garbage championing, for example, the groundless claim that undersea volcanoes could be responsible for global warming. There are plenty of senior Catholics seeking to undermine the pope’s defence of the living world, which could explain why a draft of his encyclical was leaked. What I mean is that Pope Francis, a man with whom I disagree profoundly on matters such as equal marriage and contraception, reminds us that the living world provides not only material goods and tangible services, but is also essential to other aspects of our wellbeing. And you don’t have to believe in God to endorse that view.

In his beautiful book The Moth Snowstorm, Michael McCarthy suggests that a capacity to love the natural world, rather than merely to exist within it, might be a uniquely human trait. When we are close to nature, we sometimes find ourselves, as Christians put it, surprised by joy: “A happiness with an overtone of something more, which we might term an elevated or, indeed, a spiritual quality.”

He believes we are wired to develop a rich emotional relationship with nature. A large body of research suggests that contact with the living world is essential to our psychological and physiological wellbeing. (A paper published this week, for example, claims that green spaces around city schools improve children’s mental performance.)

This does not mean that all people love nature; what it means, McCarthy proposes, is that there is a universal propensity to love it, which may be drowned out by the noise that assails our minds. As I’ve found while volunteering with the outdoor education charity Wide Horizons, this love can be provoked almost immediately, even among children who have never visited the countryside before. Nature, McCarthy argues, remains our home, “the true haven for our psyches”, and retains an astonishing capacity to bring peace to troubled minds.

Acknowledging our love for the living world does something that a library full of papers on sustainable development and ecosystem services cannot: it engages the imagination as well as the intellect. It inspires belief; and this is essential to the lasting success of any movement.

Is this a version of the religious conviction from which Pope Francis speaks? Or could his religion be a version of a much deeper and older love? Could a belief in God be a way of explaining and channelling the joy, the burst of love that nature sometimes inspires in us? Conversely, could the hyperconsumption that both religious and secular environmentalists lament be a response to ecological boredom: the void that a loss of contact with the natural world leaves in our psyches?

Of course, this doesn’t answer the whole problem. If the acknowledgement of love becomes the means by which we inspire environmentalism in others, how do we translate it into political change? But I believe it’s a better grounding for action than pretending that what really matters to us is the state of the economy. By being honest about our motivation we can inspire in others the passions that inspire us.

Monday 23 June 2014

Nation states are too small to fix global problems


We need a debate about tackling international problems, rather than hankering for some mystic past in which country was king
Andrzej Krauze: an uphill struggle for supranationalism
‘The greatest democratic problem today is the weakening power of the nation state faced by threats stretching beyond its borders.' Illustration: Andrzej Krauze

Jean-Claude Juncker may not be the right answer, but his candidacy for the presidency of the European commission is at least a response to the right question. The process by which he rose to lead the European People's party list – which then emerged as the largest group in the European parliament – was an attempt to engage voters in the European decisions taken in their name. As such, it confronted the central political issue of our times.
We live in a world of increasingly global problems, ineffective national solutions, and consequent disillusion with democratic politics. These tensions will ultimately prove as great a threat to our democracy and our values as the totalitarian regimes of the 20th century. Who cares about pretentious, powerless politicians? Powerlessness is stealthy, insidious and corrosive to our belief that politics matters. At least Europe has attempted to respond by electing its supranational legislators.
It is, though, a work in progress. Europe is full of talk of the "democratic deficit", even though EU institutions are the only transnational bodies with any elected component. Nor are the voters impressed. Even in Europe, there is scant understanding of the new transnational realities. The European parliament elections showed a yearning for simple, nationalist solutions.
Nigel FarageGeert Wilders and Marine Le Pen are tribunes of nostalgia for national certainties. Yet scarcely any problem that people care about passionately is any longer susceptible to a purely national solution, even by a country as big, powerful and besotted with the perfume of sovereignty as the US. Yesterday's American hubris is today's Iraqi disaster.
Conflict resolution? Most recent conflicts have begun within societies, not between them. Last week's UN report noted that there are now 51 million refugees and internally displaced people across the world, half of them children. This was the highest level since the second world war, and mainly due to internal conflict in Syria, South Sudan and the Central African Republic.
Yet the UN is no nearer to developing a legitimate template that can impose order in the increasingly common phenomenon of the failed state. Afghanistan, Yemen and Sudan have all been horrible warnings of what can follow from internal collapse, all with consequences far beyond their own frontiers. Ominously, Pakistan is on many experts' danger list, and it is a nuclear weapons state.
Even an issue like wealth and income inequality, once the meat and drink of class-based national politics in the old democracies, is not immune. Inequality is likely to grow, as Thomas Piketty has argued. National solutions will not work. High tax rates in one country are liable to be undercut by competitor countries, sometimes gleefully and deliberately, as in the case of George Osborne's explicit decision to cut corporation tax rates. The only solution is international agreement on tax avoidance, evasion and minimum tax rates. Goodbye nation state.
Take the prosperity brought by large-scale mass production. The US is so rich in part because of its huge domestic market. If we want our European companies to produce at scale, they have to be able to make the same product for the whole European market. For such a single market to work, every national market has to have similar consumer safety, health and environmental standards. That means at least Europe-wide – and maybe soon transatlantic – rule-setting. Goodbye nation state.
Then there is clean water and unpolluted air. Climate change alone makes the case for international action: without it, we are heading inexorably for such extreme weather events that our prosperity will be cataclysmically undermined. Ask the insurers: one group of private companies only too aware of the rising costs and damage of climate change.
Take even an area traditionally central to the nation state, such as crime. The European arrest warrant and speedy extradition are responses to the easyJet age. Cybercrime disrespects frontiers as readily as air or sea pollution. Fraud in London may begin in Singapore, and involve counterparties in Zurich. Policing is international, or it is flat-footed.
If we cannot grasp these global issues – fundamental to our future prosperity and to our belief in the efficacy of the public realm – the disillusion with national politics will fester. When problems are global, solutions must match. Power is increasingly going to be wielded supranationally. That, in turn, brings the challenge of how to make politics work across language and cultural barriers.
This is not a counsel of despair. We have solved global problems such as the hole in the ozone layer. There are also examples of successful, multilingual democracies that provide a model for the public accountability of international power: India, Switzerland and Canada. (I could add Belgium and Luxembourg, but that is more contentious.) Language barriers may even melt as voice-recognition technology gives everyone a hand-held interpreter.
But we need a public debate about where the real problems in our democracy lie, rather than hankering for some mystic past in which powerful nations resolved simple problems with the smack of firm government. David Cameron needs to spell out some home truths to his own party, and start to provide some answers himself.
The greatest democratic problem today is the weakening power of the nation state faced by threats stretching beyond its borders. The nation's weakness is fatally wounding the prestige of its political elites. Pity the mediocre Juncker, for he carries all the expectations of this new and frightening world.

Wednesday 19 June 2013

Met Office says wait until 2023 for a hot summer

Britain's spell of awful summers is set to continue

Forecast that UK could be in middle of 10-20 year 'cycle' of wet summers delivered following gathering at Met Office
Rain delays the start of England v NZ
Rain delays the start of the match between England and New Zealand on 16 June. Photograph: Andrew Yates/AFP/Getty Images

Don't worry, summer is on its way – but you might have to wait until 2023.
As the prospect of another gloomy Glastonbury and wet Wimbledon looms, leading climate scientists have warned that the UK could be set for a further five to 10 years of washout summers.
The grim conclusion was delivered after an unprecedented gathering of scientists and meteorologists at the Met Office in Exeter to debate the range of possible causes for Europe's "unusual seasonal weather" over recent years, a sequence that has lasted since 2007.
Many will have hoped for news of sunnier times ahead. But after experts brainstormed through the day they delivered the shock finding that the UK could be in the middle of a 10-20 year "cycle" of wet summers. The last six out of seven summers in the UK have seen below-average temperatures and sunshine, and above-average rainfall.
Stephen Belcher, head of the Met Office Hadley Centre and professor of meteorology at the University of Reading, stressed that the finding was not an official long-term forecast and does not automatically mean the UK will now have a further decade of wet summers. But, he said, the scientists' conclusion was that the chances of this occurring are now higher than they first thought.
"Predicting when this cycle will end is hard," said Belcher, who led the meeting of 25 scientists. "We have seen similar patterns before – in the 1950s and the 1880s – and we have hints that we are coming towards the end of this current cycle. However, it might continue for the next five to 10 years. There is a higher probability of wet summers continuing. But it's very early days in trying to understand why this is happening."
The scientists must now address what "dynamical drivers" are causing this cycle, Belcher said. The meeting debated a range of possible interconnected reasons for the unusual weather of recent years, including this year's cold spring and the freezing winter of 2010/11. The most likely cause for the wet summers, he said, was the Atlantic multi-decadal oscillation, or AMO, a natural pattern of long-term changes to ocean currents.
Other candidate causes that could be "loading the dice", as Belcher described it, include a shift in the jet stream, solar variability and fast-retreating Arctic sea ice. Aggravating all of these factors could be the influence of anthropogenic greenhouse gases entering the atmosphere.
Dr James Screen, who studies how melting sea ice impacts on the jet stream at the University of Exeter, said: "There has been a lot of talk about declining Arctic sea ice playing a role in our weather patterns, but really that's just one aspect of changes in the Arctic climate – which has seen rapid warming compared to other parts of the world. Those changes mean there is less of a difference in temperature between the Arctic and tropics, which could impact the position of the jet stream."
The scientists also debated how melting sea ice should be better incorporated into climate models, as well as how observational data – for example, deep-ocean temperatures – could be improved to help their understanding of the potential relationship between climate change and the recent run of inclement weather and record-breaking extremes.
Len Shaffrey, a climate modeller based at the University of Reading who is also currently investigating possible links between Arctic sea ice retreat and European weather, said: "There are some fascinating science questions emerging about the influences on our weather, for example, from natural variations in ocean temperature. There is also some evidence that the record low amounts of Arctic sea ice have influenced patterns of European and British weather, but this evidence is not yet conclusive either way."
The scientific debate about the role of the jet stream – the fast "river" of meandering, 10km-high air which greatly determines UK weather - is intensifying. This week researchers from the University of Sheffield published a study in the International Journal of Climatology showing how "unusual changes" to the jet stream caused the "exceptional" melting of the Greenland ice sheet during the summer of 2012. Scientists say they must now determine what is causing these "displacements", as they are known, in the jet stream.
Tourist bosses were trying to find silver linings. David Leslie, a spokesman for the tourism agency Visit Britain, said people did not come to the UK for the weather alone. "The weather here is as unpredictable as anywhere else," he added.
"The days of the UK being seen as a foggy, wet destination have passed. Hot, cold or mildly pleasant, the weather is not a deterrent for overseas visitors coming here to enjoy Britain's tourism offering, which remains the best in the world."