I’m a climate change scientist – and I’m campaigning for Labour this election

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School climate strikes have encouraged some political parties to be more radical. SewCream / shutterstock

Simon Lewis, UCL

The 2019 UK general election matters because the climate emergency means that the next decade is critical for the future of humanity. Only a Labour government can really turn things around, not just in the UK, but globally. This may sound exaggerated, but it’s true. Let me explain.

While flooding has affected people in Yorkshire during the election period, look further afield and many millions are suffering the impacts of catastrophic floods in Central and East Africa. Fires have raged in Australia and things will get a lot worse until humans stabilise Earth’s rapidly changing climate. To do that means carbon emissions need to decline to zero. Fast.

Pursuing policies to limit warming to 1.5℃, as the Paris Agreement mandates, is a two part process. Stage one is to halve global emissions by 2030. Stage two is to eliminate the other half by 2050. Getting the world to zero emissions is extremely difficult as it means every sector of every country needs to get to zero. We can still pollute, but every tonne of carbon dioxide emitted will need to be immediately captured again, giving a net impact of zero emissions.

A serious plan

Finally, after 30-plus years of scientists explaining the problem, a major political party of a major economy has a serious plan for part one of the process. After wrangling between grassroots activists and trade unions, the Labour Manifesto pledges that the “substantial majority” of UK emissions will be eliminated by 2030. This isn’t bluster, as there is serious investment planned across electricity production (more wind and solar), buildings (retrofitting all UK houses to high efficiency standards), transport (investment in buses, only electric cars sales from 2030), and heavy industry (research and development into hydrogen and carbon capture technology), to name a few sectors.

Crucially, this would be driven by those who control the finances of the country. A new Sustainable Investment Board would bring together the chancellor, business secretary and Bank of England governor to oversee and co-ordinate these major investments. A National Investment Bank with £250 billion allocated for decarbonising the economy provides serious funds. And climate and environmental impacts will be included in the Office for Budget Responsibility forecasts, so that the cost of not acting will be factored into every government decision.

Labour are calling it a Green Industrial Revolution. And it would be. It is a far-reaching set of policies and investments befitting the scale of the problem.

Tory plan ‘lacks ambition’

By comparison the Conservative Party manifesto lacks ambition and seriousness. Capital spending on climate – broadly conceived – is just £20 billion. There is no overarching strategy to reach net zero. As the independent analysts, the Institute for Fiscal Studies, said of the whole manifesto, “If a single Budget had contained all these tax and spending proposals we would have been calling it modest. As a blueprint for five years in government the lack of significant policy action is remarkable.”

While the Conservatives have a net zero target of 2050 and official UK emissions have dropped by 43% from 1990 levels, most of the reduction has come from the power sector, and the low-hanging fruit of switching from coal-fired electricity generation to gas and renewables. Beyond this, their record over the past decade in government has been poor – emissions from transport, buildings and agriculture have not declined over recent years.

Ditching coal power was a relatively easy win. Steve Allen / shutterstock

In 2019, the government’s own independent advisers, the Committee on Climate Change, said that only one of 25 policy recommendations had been delivered, and the UK is on track to miss its binding interim carbon budget for 2023 to 2027.

The stakes couldn’t be higher

Of course, UK emissions are just 1% of the world’s total, so does it matter what the UK does? It does. First, because every country needs to get to net zero emissions. Second, as the fifth largest economy in the world, large and sustained reductions in emissions across all sectors simultaneously would become a beacon to other countries to learn from the UK and reduce their emissions more quickly. Third, Labour would use £4 billion of new overseas development funds help countries leap-frog the fossil fuel age.

Finally, geopolitics matters. The world is gripped by right-wing populists who are often hostile to tackling climate change. Brazil’s Jair Bolsonaro abandoned hosting this years’ UN climate talks, while Donald Trump plans to pull out of the Paris Agreement. Fearful inward-looking nationalism means that the internationalism necessary to tackle climate change is being eroded.

The antidote to the rising right-wing populism that Brexit and Boris Johnson are part of, is a Labour government with a Green Industrial Revolution at its heart. And just as Brexit spurred the Trump campaign, a win for Labour would increase the chances of the Democrats in the US reaching office and pursuing a similar Green New Deal. The tide would be turning towards deploying the tools of the state to reshape the economy to seriously tackle climate change.

Scientists working on climate often say some form of transformation of society is needed to tackle climate change. Here’s a rare chance to lever serious resources to do just that. Of course, supporting any political party is a major compromise, especially with our voting system.

When it comes to the environment, you can’t beat the Greens, but they can’t form the next government. The big prize is to grasp the chance to turn things around. So, I won’t just be voting this election. I’ll be out knocking on doors to canvas for Labour. It’s the least I can do. The stakes couldn’t be higher.


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Simon Lewis, Professor of Global Change Science at University of Leeds and, UCL

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Continue ReadingI’m a climate change scientist – and I’m campaigning for Labour this election

Scientists say that average temperatures from 2010-2019 look set to make it the warmest decade on record.

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Climate change: Last decade ‘on course’ to be warmest

Scientists say that average temperatures from 2010-2019 look set to make it the warmest decade on record.

Provisional figures released by the World Meteorological Organization (WMO) suggest this year is on course to be the second or third warmest year ever.

If those numbers hold, 2015-2019 would end up being the warmest five-year period in the record.

This “exceptional” global heat is driven by greenhouse gas emissions, the WMO says.

Continue ReadingScientists say that average temperatures from 2010-2019 look set to make it the warmest decade on record.

Climate emergency: world ‘may have crossed tipping points’

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Warning of ‘existential threat to civilisation’ as impacts lead to cascade of unstoppable events

The world may already have crossed a series of climate tipping points, according to a stark warning from scientists. This risk is “an existential threat to civilisation”, they say, meaning “we are in a state of planetary emergency”.

Tipping points are reached when particular impacts of global heating become unstoppable, such as the runaway loss of ice sheets or forests. In the past, extreme heating of 5C was thought necessary to pass tipping points, but the latest evidence suggests this could happen between 1C and 2C.

The planet has already heated by 1C and the temperature is certain to rise further, due to past emissions and because greenhouse gas levels are still rising. The scientists further warn that one tipping point, such as the release of methane from thawing permafrost, may fuel others, leading to a cascade.

The researchers, writing in a commentary article in the journal Nature, acknowledge that the complex science of tipping points means great uncertainty remains. But they say the potential damage from the tipping points is so big and the time to act so short, that “to err on the side of danger is not a responsible option”. They call for urgent international action.

Continue ReadingClimate emergency: world ‘may have crossed tipping points’

Statement on the Climate Crisis: Revised

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The Earth’s climate is in crisis, it is an emergency. There is no doubt about it – scientists are in near unanimous agreement that humans are causing severe damage to Earth’s climate. This is our home and we have to care for it. I particularly feel for future generations – our children and their children – who we have failed. I propose that the appropriate response is that we do whatever is necessary and that we have already delayed too much.

[Revision 28/11/19

There is a clear Left vs. Right political orientation divide on the need for urgent action to address the climate crisis. It is within right-wing politicians that – despite the absolute deluge of evidence – deniers of human-caused climate change are found, figures such as Donald Trump and Nigel Lawson in the UK. It is within right-wing political parties – in the UK the Conservative, Brexit, UKIP and the Neo-Liberal Liberal Democrats parties – that there is little appetite for emergency action to reduce damage to the climate from human actions.

We need to prevent Climate change deniers and those most resistant to climate action i.e. the right-wing, from getting elected and being in positions of power.]

While I am no expert there are plenty of experts and we should listen to them.

This post is to be revised and elaborated.

[21/11/19

World Scientists’ Warning of a Climate Emergency

Scientists have a moral obligation to clearly warn humanity of any catastrophic threat and to “tell it like it is.” On the basis of this obligation and the graphical indicators presented below, we declare, with more than 11,000 scientist signatories from around the world, clearly and unequivocally that planet Earth is facing a climate emergency.

Mitigating and adapting to climate change while honoring the diversity of humans entails major transformations in the ways our global society functions and interacts with natural ecosystems. We are encouraged by a recent surge of concern. Governmental bodies are making climate emergency declarations. Schoolchildren are striking. Ecocide lawsuits are proceeding in the courts. Grassroots citizen movements are demanding change, and many countries, states and provinces, cities, and businesses are responding.

As the Alliance of World Scientists, we stand ready to assist decision-makers in a just transition to a sustainable and equitable future. We urge widespread use of vital signs, which will better allow policymakers, the private sector, and the public to understand the magnitude of this crisis, track progress, and realign priorities for alleviating climate change. The good news is that such transformative change, with social and economic justice for all, promises far greater human well-being than does business as usual. We believe that the prospects will be greatest if decision-makers and all of humanity promptly respond to this warning and declaration of a climate emergency and act to sustain life on planet Earth, our only home.]

Continue ReadingStatement on the Climate Crisis: Revised

Jeremy Corbyn to announce Labour manifesto

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UK’s Labour party leader Jeremy Corbyn is announcing the Labour manifesto today.

While I am not and have never been a Labour member, I strongly support the current Labour party and their policies. Jeremy Corbyn and the Labour party are presenting a real alternative. Instead of sucking up to the rich and powerful they are going to represent ordinary people.

How on earth is democracy so perverted that the rich increase their obscene wealth while we have so many people freezing to death homeless on the streets and so many of the working poor relying on food banks? (The Tories’ Universal Credit has no doubt hugely contributed to that actually.)

I am concerned with delay in addressing the climate crisis. Knowledgeable scientist are virtually unanimously agreed that action needs to be taken immediately.

World Scientists’ Warning of a Climate Emergency

Scientists have a moral obligation to clearly warn humanity of any catastrophic threat and to “tell it like it is.” On the basis of this obligation and the graphical indicators presented below, we declare, with more than 11,000 scientist signatories from around the world, clearly and unequivocally that planet Earth is facing a climate emergency.

Mitigating and adapting to climate change while honoring the diversity of humans entails major transformations in the ways our global society functions and interacts with natural ecosystems. We are encouraged by a recent surge of concern. Governmental bodies are making climate emergency declarations. Schoolchildren are striking. Ecocide lawsuits are proceeding in the courts. Grassroots citizen movements are demanding change, and many countries, states and provinces, cities, and businesses are responding.

As the Alliance of World Scientists, we stand ready to assist decision-makers in a just transition to a sustainable and equitable future. We urge widespread use of vital signs, which will better allow policymakers, the private sector, and the public to understand the magnitude of this crisis, track progress, and realign priorities for alleviating climate change. The good news is that such transformative change, with social and economic justice for all, promises far greater human well-being than does business as usual. We believe that the prospects will be greatest if decision-makers and all of humanity promptly respond to this warning and declaration of a climate emergency and act to sustain life on planet Earth, our only home.]

Continue ReadingJeremy Corbyn to announce Labour manifesto