Paying for the environmental damage they do would render global industries unprofitable overnight

The externalities are massive.

Grist's David Roberts reports on a paper produced by environmental consultancy Trucost, which assess the value of the externalities used by the world's industries, and comes to an astonishing conclusion:

Of the top 20 region-sectors ranked by environmental impacts, none would be profitable if environmental costs were fully integrated. Ponder that for a moment. None of the world’s top industrial sectors would be profitable if they were paying their full freight. None!

Backtracking a bit. An externality is a cost or benefit of production which is not internalised into the cost of production. If I use electricity to make widgets, I have to pay for it; but if I "use" the atmosphere to make widgets, by releasing pollution into it, then I don't have to pay a dime.

What that means is that the standard logic of the free market – that voluntary transactions will always make everyone better off – breaks down. If I make £1 profit from each widget I produce, but cause £2 of damage to the environment, then my incentive is to keep pumping out widgets, even though there's a net loss of £1 to the world for every one I make.

The standard economic response to this problem is to call for externalities to be "priced in". If I have to pay the £2 damage that my pollution causes, I won't make widgets until I clean up the production process.

That is the logic behind calls for a carbon tax, but it actually applies to a lot of environmental problems. The Trucost paper looks at water use, land use, air pollution, land and water pollution, and waste as well as just greenhouse gas emissions, and puts a cost on each of them. And when it does, it finds that a lot of industries might not be profitable if they had to pay the full cost of what they do:

(Click to embiggen)

Coal power generation in Eastern Asia, which generates revenues of $443.1bn, has a natural capital cost of $452.8bn (that's unpriced natural capital – the report already takes into account the various ways in which industries are forced to price in their externalities), largely due to greenhouse gases. Cattle ranching in South America, with revenues of $16.6bn, has capital cost of $353.8bn, due to the unpriced cost of land use. And so on.

You can quibble the figures – and doubtless many will – but what is clear is they are large. Really, really large. Many of the biggest industries in the world can only exist because they don't have to pay the true environmental cost of what they do. The word "unsustainable" is thrown around too much these days, but it seems to fit here.

Argentine Cattle. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Brexit has opened up big rifts among the remaining EU countries

Other non-Euro countries will miss Britain's lobbying - and Germany and France won't be too keen to make up for our lost budget contributions.

Untangling 40 years of Britain at the core of the EU has been compared to putting scrambled eggs back into their shells. On the UK side, political, legal, economic, and, not least, administrative difficulties are piling up, ranging from the Great Repeal Bill to how to process lorries at customs. But what is less appreciated is that Brexit has opened some big rifts in the EU.

This is most visible in relations between euro and non-euro countries. The UK is the EU’s second biggest economy, and after its exit the combined GDP of the non-euro member states falls from 38% of the eurozone GDP to barely 16%, or 11% of EU’s total. Unsurprisingly then, non-euro countries in Eastern Europe are worried that future integration might focus exclusively on the "euro core", leaving others in a loose periphery. This is at the core of recent discussions about a multi-speed Europe.

Previously, Britain has been central to the balance between ‘ins’ and ‘outs’, often leading opposition to centralising eurozone impulses. Most recently, this was demonstrated by David Cameron’s renegotiation, in which he secured provisional guarantees for non-euro countries. British concerns were also among the reasons why the design of the European Banking Union was calibrated with the interests of the ‘outs’ in mind. Finally, the UK insisted that the euro crisis must not detract from the development of the Single Market through initiatives such as the capital markets union. With Britain gone, this relationship becomes increasingly lop-sided.

Another context in which Brexit opens a can of worms is discussions over the EU budget. For 2015, the UK’s net contribution to the EU budget, after its rebate and EU investments, accounted for about 10% of the total. Filling in this gap will require either higher contributions by other major states or cutting the benefits of recipient states. In the former scenario, this means increasing German and French contributions by roughly 2.8 and 2 billion euros respectively. In the latter, it means lower payments to net beneficiaries of EU cohesion funds - a country like Bulgaria, for example, might take a hit of up to 0.8% of GDP.

Beyond the financial impact, Brexit poses awkward questions about the strategy for EU spending in the future. The Union’s budgets are planned over seven-year timeframes, with the next cycle due to begin in 2020. This means discussions about how to compensate for the hole left by Britain will coincide with the initial discussions on the future budget framework that will start in 2018. Once again, this is particularly worrying for those receiving EU funds, which are now likely to either be cut or made conditional on what are likely to be more political requirements.

Brexit also upends the delicate institutional balance within EU structures. A lot of the most important EU decisions are taken by qualified majority voting, even if in practice unanimity is sought most of the time. Since November 2014, this has meant the support of 55% of member states representing at least 65% of the population is required to pass decisions in the Council of the EU. Britain’s exit will destroy the blocking minority of a northern liberal German-led coalition of states, and increase the potential for blocking minorities of southern Mediterranean countries. There is also the question of what to do with the 73 British MEP mandates, which currently form almost 10% of all European Parliament seats.

Finally, there is the ‘small’ matter of foreign and defence policy. Perhaps here there are more grounds for continuity given the history of ‘outsourcing’ key decisions to NATO, whose membership remains unchanged. Furthermore, Theresa May appears to have realised that turning defence cooperation into a bargaining chip to attract Eastern European countries would backfire. Yet, with Britain gone, the EU is currently abuzz with discussions about greater military cooperation, particularly in procurement and research, suggesting that Brexit can also offer opportunities for the EU.

So, whether it is the balance between euro ‘ins’ and ‘outs’, multi-speed Europe, the EU budget, voting blocs or foreign policy, Brexit is forcing EU leaders into a load of discussions that many of them would rather avoid. This helps explain why there is clear regret among countries, particularly in Eastern Europe, at seeing such a key partner leave. It also explains why the EU has turned inwards to deal with the consequences of Brexit and why, although they need to be managed, the actual negotiations with London rank fairly low on the list of priorities in Brussels. British politicians, negotiators, and the general public would do well to take note of this.

Ivaylo Iaydjiev is a former adviser to the Bulgarian government. He is currently a DPhil student at the Blavatnik School of Government at the University of Oxford

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