President Donald Trump announced on Monday that he would again pull the United States out of the Paris climate accord, dealing a blow to it. global effort fight global warming and once again alienate the US from its closest allies.

It statementwhich came that day Mr. Trump took the oath for a second term, it repeated Trump's actions in 2017when he announced that the US would withdraw from the global Paris Agreement. President Biden later rejoined.

As signed by A series of executive actions After his inauguration, Mr. Trump said: “I am withdrawing immediately from the unfair, unilateral Paris climate agreement.” He also signed a letter informing the United Nations of his decision.

The pact is directed limiting long-term global warming to 2.7 degrees Fahrenheit (1.5 degrees Celsius) above pre-industrial levels or, failing that, to keep temperatures at least 3.6 degrees Fahrenheit (2 degrees Celsius) above pre-industrial levels.The US is one of the world leaders carbon pollution nations

The 2015 Paris Agreement is voluntary and allows countries to set targets to reduce their own greenhouse gas emissions from burning coal, oil and natural gas.These targets are expected to become more stringent over time as countries face a February 2025 deadline. for new individual plans.

The outgoing Biden administration last month proposed a plan to reduce greenhouse gas emissions in the United States by more than 60% by 2035.

Lawrence Tubiana, executive director of the European Climate Fund and chief architect of the Paris accord, called the planned US withdrawal a failure, but said action to slow climate change was “stronger than the policies and politics of any country”.

The global context for Trump's action is “very different from 2017,” Tubiana said, adding that “behind the global transition is an unstoppable economic momentum that the United States has benefited from and led but is now at risk of losing.”

The International Energy Agency expects the global market for key clean energy technologies to triple to more than $2 trillion by 2035, he said.

“The impact of the climate crisis is also worsening terrible forest fires Los Angeles is the latest reminder that Americans, like everyone else, are suffering from worsening climate change,” Tubiana said.

Gina McCarthy, who was White House climate adviser under Democrat Joe Biden, said that if Republican Trump “really wants America to lead the world economy, become energy independent and create good-paying American jobs,” then “We need to stay focused on developing our clean energy industry. Clean technologies lower energy costs for people across our country.”

The world is now 2.3 degrees Celsius (1.3 degrees Fahrenheit) above the 1800s average. Most, but not all, climate monitoring agencies say global temperatures exceeded the 2.7 degrees Fahrenheit warming threshold last year, and everyone says it was the hottest year on record.

Without further reductions in the next few years, the world is on track to increase temperatures by more than 3 degrees Celsius. UN reportwhich warned that such an outcome would “have a debilitating effect on people, the planet and economies”.

The process of withdrawing from the Paris Agreement lasts a year. Trump's previous withdrawal took effect the day after the 2020 presidential election, which he lost to Biden.

Meanwhile, the first exit under Trump UN Framework Convention — adopted by 196 countries. has shocked and angered countries around the world, “no country has followed the US out the door,” said Alden Meyer, a longtime analyst of climate talks with the European think tank E3G.

Instead, Meyer and other experts said, other countries renewed their commitment to slowing climate change, along with investors, businesses, governors, mayors and others.

Still, they lamented the loss of U.S. leadership in global efforts to slow climate change, even as the world prepares for another record-breaking hot year and from droughts to hurricanes, floods to wildfires.

“It's clear that America is not going to play a leading role in solving the climate crisis, the biggest dilemma humans have ever faced,” said climate activist and author Bill McKibben The hope is that Washington will not succeed in thwarting the efforts of others.”

About half of Americans “somewhat” or “strongly” oppose US action to withdraw from the climate accord, and even Republicans are overwhelmingly opposed, according to the poll. request From the Associated Press-NORC Center for Public Affairs Research, only 2 in 10 US adults “somewhat” or “strongly” favor withdrawing from the Paris Agreement, while about a quarter are neutral.

Most of the opposition to the US withdrawal comes from Democrats, but Republicans also show some ambivalence, with just under half of Republicans in favor of withdrawing from the climate accord, while about 2 in 10 oppose it.

China overtook the US as the world's largest carbon dioxide emitter a few years ago. The US, the second largest carbon polluter, will release 4.9 billion tonnes of carbon dioxide into the air in 2023, down 11% from the previous decade. compared, according to scientists who track emissions from the Global Carbon Project.

But carbon dioxide Persisting in the atmosphere for centuries, the U.S. has put more of the greenhouse gas in the air now than any other nation. According to the Global Carbon Project, the U.S. is responsible for nearly 22 percent of the carbon dioxide put into the atmosphere since 1950. for %.

While global efforts to combat climate change continued during Trump's first presidency, many experts worry that a second Trump term will be even more damaging, as the United States will pull back even further on climate efforts in a way that could undermine the efforts of future presidents has abandoned climate change, runs the world's leading economy, those experts fear that other countries, especially China, could use it as an excuse to reduce their own efforts to curb carbon emissions.

UN Climate Change Executive Secretary Simon Steele expressed hope that the US will continue to embrace the global clean energy boom.

“Ignoring it only sends all that enormous wealth to competing economies while climate disasters like drought, wildfires and superstorms continue to worsen,” Steele said constructive engagement of all countries”.