If you're under 45, you'll see climate change's effects in person

We're still caught up in a 1980s mindset.

BusinessGreen's James Murray writes about "Clinging to a climate of optimism" when it comes to fighting climate change:

My point is this: if you are over 45, then you are on track to bequeath the rest of us a pretty scary inheritance. But if you are under 45, then you have a good chance of experiencing some of the more devastating results of our failure to leave fossil fuels in the ground for yourself. You will see first-hand whether we are capable of building a genuinely sustainable global economy by mid-century or not. You will find out if it is possible to support nine billion people in a warmer world. You have a direct stake in this game.

In a way, it comes back to the argument I made last week about the risks of imprecision: climate change has been mentally filed away in the "legacy to our grandchildren" box for the last forty years. But while it's painfully obvious that something happening "in 2080" is getting closer every year, it's not quite so easy to continually readjust your perceptions for something which you've estimated as "a long way in the future".

And so we end up in the trap Murray addresses, where even people who were born after climate change first hit the agenda have it wrongly pegged as something they won't be alive to see. There's a level of urgency which people understand on an intellectual level, but not on a practical one. That is, someone perfectly happy to talk about "two degrees warming by 2050" still blanches when discussing the Thames Barrier being breached in their lifetime.

What effects could that practical understanding have on our approach to the issue? Murray writes:

Too many environmental debates are akin to arguing in 1940 about whether the allies should build tanks or planes.

We are past the point where we have the luxury of working out what the "best" sort of investment is to fight climate change – and really, we should never have been having that argument in the first place. A carbon-free energy infrastructure would always have a mix of inputs, from wind and solar to nuclear and CCS-equipped gas generation, and while some mixes might work better than others, all of them are better than the status quo.

But you don't even need to decide which energy mix you want, because with an appropriate policy background you could leave providers to make their own choices. That could be a cap-and-trade system which actually caps, as opposed to just trading, or it could be a carbon tax levied at a high enough level to make a difference, but whatever it is, it needs to be passed sooner rather than later.

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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PMQs review: Theresa May shows how her confidence has grown

After her Brexit speech, the PM declared of Jeremy Corbyn: "I've got a plan - he doesn't have a clue". 

The woman derided as “Theresa Maybe” believes she has neutralised that charge. Following her Brexit speech, Theresa May cut a far more confident figure at today's PMQs. Jeremy Corbyn inevitably devoted all six of his questions to Europe but failed to land a definitive blow.

He began by denouncing May for “sidelining parliament” at the very moment the UK was supposedly reclaiming sovereignty (though he yesterday praised her for guaranteeing MPs would get a vote). “It’s not so much the Iron Lady as the irony lady,” he quipped. But May, who has sometimes faltered against Corbyn, had a ready retort. The Labour leader, she noted, had denounced the government for planning to leave the single market while simultaneously seeking “access” to it. Yet “access”, she went on, was precisely what Corbyn had demanded (seemingly having confused it with full membership). "I've got a plan - he doesn't have a clue,” she declared.

When Corbyn recalled May’s economic warnings during the referendum (“Does she now disagree with herself?”), the PM was able to reply: “I said if we voted to leave the EU the sky would not fall in and look at what has happened to our economic situation since we voted to leave the EU”.

Corbyn’s subsequent question on whether May would pay for single market access was less wounding than it might have been because she has consistently refused to rule out budget contributions (though yesterday emphasised that the days of “vast” payments were over).

When the Labour leader ended by rightly hailing the contribution immigrants made to public services (“The real pressure on public services comes from a government that slashed billions”), May took full opportunity of the chance to have the last word, launching a full-frontal attack on his leadership and a defence of hers. “There is indeed a difference - when I look at the issue of Brexit or any other issues like the NHS or social care, I consider the issue, I set out my plan and I stick to it. It's called leadership, he should try it some time.”

For May, life will soon get harder. Once Article 50 is triggered, it is the EU 27, not the UK, that will take back control (the withdrawal agreement must be approved by at least 72 per cent of member states). With MPs now guaranteed a vote on the final outcome, parliament will also reassert itself. But for now, May can reflect with satisfaction on her strengthened position.

George Eaton is political editor of the New Statesman.