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Oct. 21, 2021, 8:29 a.m. EDT

Rich countries failing miserably on their moral obligation to act with urgency to stop climate change

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Jeffrey D. Sachs

NEW YORK ( Project Syndicate )—The philosopher Immanuel Kant famously said that, “Whoever wills the end also wills…the indispensably necessary means to it that is in his control.” Put simply, when we set a goal, we ought to take the actions needed to achieve it. This is an essential maxim for our governments, and it should guide Group of 20 leaders when they meet in Rome at the end of October to confront the climate crisis.

The world set a goal in the  Paris climate agreement : to keep global warming within 1.5° Celsius of preindustrial levels. The  Intergovernmental Panel on Climate Change  has explained why this is a valid goal. To go higher than 1.5°C would jeopardize life on the planet with a potential multimeter rise of sea level, the collapse of critical ecosystems, and the release of methane from thawing permafrost, possibly triggering runaway warming. Yet the world’s current trajectory implies a  catastrophic 2.7°C  increase in global temperature.

Earlier this year, the International Energy Agency  showed the technological pathway  to achieve the 1.5°C target. We must decarbonize the world’s energy system by midcentury. This is feasible, by shifting from fossil fuels to renewable energy and green fuels in power generation, transport, buildings, and industry. Beyond that, we also need to stop deforestation and restore degraded land on a massive scale.

So far, governments are failing miserably to do their part. In the inimitable words of Greta Thunberg, they need to move beyond “ Blah, blah, blah. ” They must will the means to decarbonization.

Six things to do

First, governments need to plan the energy system and land-use changes to midcentury. With just 28 years left to 2050, and facing the need for a massive overhaul of energy systems and land-use practices, governments must plan the necessary public investments and policies. And they must gain acceptance and support for those plans by subjecting them to public scrutiny, debate, and revision.

Second, governments must regulate. As the IEA wrote clearly in its report, there is no need or justification for new fossil-fuel investments. Period. We have enough proven fossil-fuel reserves. No country should get a pass on ending new exploration and development of fossil fuels.

Third, governments must finance—at scale—zero-carbon infrastructure, such as national and regional renewable-energy power grids (for example, linking the European Union, North Africa, the Eastern Mediterranean, and the Middle East), as well as electrification of transport and buildings.

Fourth, rich-country governments must help finance poorer countries’ efforts to make the needed investments. Rich countries have long promised to do this, but have failed to mobilize even the rather pitiful $100 billion a year—a mere 0.1% of world output—they first pledged in 2009.

Fifth, developed countries should compensate the developing world for the climate damages they have already wrought and which will intensify in the future. The United States has emitted  25% of carbon-dioxide emissions dating back to 1751 , despite having less than 5% of the global population. Countries all over the world are suffering massive climate disasters as a result of U.S. energy malfeasance. Yet the U.S. and other major historical emitters have offered nothing in compensation for the damages they are causing.

Lastly, the world’s rich people, responsible for the preponderance of fossil-fuel use in their own countries and on a global scale, need to pay their fair share of the costs of climate adjustment. Yet, by and large, the richest people escape fair taxation, as shown once again in the  Pandora Papers  and a  ProPublica  report on tax avoidance .

Good news

There is some good news. Many governments are taking some steps in the right direction. The European Union is in the lead, with the European Green Deal, which pledges the EU to achieve net-zero emissions by 2050. Japan and South Korea have also pledged to reach net zero by 2050, and President Joe Biden is trying to bring the U.S. in line. China, Indonesia, and Russia have set a net-zero target of 2060, which is heartening but can and should be accelerated.

Yet major emitters such as Australia, India, and Saudi Arabia have not made any such pledge, and the U.S. is showing signs of another massive political failure to tackle climate change, despite Biden’s efforts. Since ratifying the U.N. Framework Convention on Climate Change in 1992, the U.S. Senate has blocked any action to implement the treaty and the Paris climate agreement.

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