Summit catapults world ahead in crucial year to curb warming

WASHINGTON — The world moved closer to curbing the worst of global warming after this week’s climate summit. But there’s still a long way to go, and the road to a safer future gets even rockier from here. With the world trying to prevent more than another half-degree of warming (0.3 degrees Celsius) to achieve the most stringent goals set by the 2015 Paris climate accord, scientists and politicians alike say this decade is crucial for any chance of getting that done. And that means 2021 is a “make-or-break year for people and the planet,” U.N. Secretary-General Antonio Guterres said.

Everything culminates in November with heavyweight climate negotiations in Glasgow, Scotland. While these climate meetings happen annually, every five or so years, a weightier session has led to major deals or disappointments in the past. It’s that time again. By November, the U.N. climate negotiating process calls for 200 nations to ratchet commitments to cut emissions of heat-trapping greenhouse gases by 2030. The rich countries need to come up with more money to help the poor countries develop greener power and adapt to climate change’s harsh realities. And nations need to agree on a price for carbon pollution after several years of gridlock. They must figure out essentially how to make it all work.

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“Glasgow is the world’s last best hope,” said U.S. special climate envoy John Kerry. There will be important stops in Germany in May for a minister’s level meeting, a British seaside town in June to discuss leaders of big economies and a final push at U.N. headquarters in September. Still, everything is about what President Joe Biden called “a road that will take us to Glasgow.” Biden’s summit, organized in less than 100 days, was designed to send the world off on a fast start toward Glasgow, and experts said it did so. They figure it pushed the globe anywhere from one-eighth to more than halfway along the journey, with mixed opinions on whether the United States did enough.

“If it were 100 miles to Glasgow, we have just done the first 12 miles on the lowlands, and we have 88 hard miles to go, with a lot of difficult terrains to cross before we get there,” said Bill Hare, director of the German think tank Climate Analytics. Hare said while countries showed a significant increase in ambition to fight climate change, he was “hoping for slightly more.” Climate scientist Zeke Hausfather, who directs climate issues at the Breakthrough Institute, was more optimistic: “I’d say this gets us about half the way (say, 50 miles) to where we need to get by Glasgow.”

Nate Hultman, director of the University of Maryland’s Center for Global Sustainability, was even more optimistic: “This has ended up being a critical international moment that provided a strong boost. … We’re now, I’d say, about 70 miles toward Glasgow.” For his part, Kerry concluded the climate summit by saying that countries representing more than half of the world’s economic output have committed to a path that would achieve the Paris goal of limiting warming to 1.5 degrees Celsius (2.7 degrees Fahrenheit) since pre-industrial times. The world has warmed by 1.2 degrees Celsius (2.2 degrees Fahrenheit). Beyond that level, environmental problems get substantially worse, with possible dangerous tipping points, scientists say.

Hare’s calculations show the world didn’t progress as much as Kerry claims. For example, he said that to limit warming to 1.5 degrees, the United States needs to cut greenhouse gas emissions 57% below 2005 levels by 2030. The Biden target announced this week was 50% to 52%. The European Union’s goals also came close but didn’t quite get there. The only major economy now on track with 1.5 degrees is the United Kingdom, Hare said. But there’s disagreement on that because of how calculations can be made. The Rhodium Group, a research institute, said Biden’s target puts America in line with the 1.5 degrees goal.

Climate Action Tracker, a group of scientists including Hare, who monitors nations’ pledges of carbon pollution cuts, calculated that targets announced since last September cut about 12% to 14% from the emissions gap. That emissions gap is that big area between what nations promise to do and the pollution reductions needed by 2030 to limit future warming to the 1.5 degrees goal. The tracker calculated that the announcements cut somewhere between 2.9 billion and 4.1 billion tons (between 2.6 billion and 3.7 billion metric tons) of carbon from the gap.

With the new targets from the United States, the United Kingdom, European Union, Japan, and Canada, the new emissions gap is 22 billion to 26 billion tons (20 billion to 24 billion metric tons) of carbon pollution. Hare chastised Australia’s efforts as “really disgraceful” and said Brazil made a weaker pledge than in 2015, while Russia didn’t offer anything substantive. “The Earth Day summit substantially improved the odds of a successful global climate summit in November,” said Nigel Purvis, a climate negotiator in the Bill Clinton and George W. Bush administrations. “With new action by rich nations and new assistance for poor nations, the world should be able to make additional progress in 2021.”

Poorer nations that haven’t made heavy pollution cut promises yet, especially India, are waiting to see if promises about financial help become more concrete before they commit to bigger pollution cuts, Hare said. But there’s hope because Biden promises commitment pub to lic climate finance available to developing countries by 2024, and Germany’s announcing 4 billion euros a year extra, Hare said. Also important was South Korea’s promise to stop financing coal power plants in other countries, Hare said. Activists hope China and Japan will follow suit, but they haven’t yet.

Alice Hill, a senior fellow for energy and environment at the Council on Foreign Relations, said this week’s summit “did not alone lead to the kind of enormous leap toward what we need in fighting climate change.” While the U.N.’s Guterres noted strengthened commitments, he said, “There is still a long way to go.” Former New York Mayor Mike Bloomberg, Guterres’ special envoy for climate ambitions and solutions, told The Associated Press, “There’s no question we moved forward. … But now comes the hard work — delivering results.” Associated Press writers Christina Larson in Washington and Ellen Knickmeyer in Oklahoma City contributed to this report.

Tyson Houlding
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