Moving to a chartered California, Trump faces a scientific reality he rejects

“In both cases, there is no plan to deal with the crisis,” he said.

In addition, Mr. Trump has consistently demolished a climate change plan that was already effectively implementing the federal government’s authority to do anything for greenhouse gas pollution by reducing it.

“We had the first federally regulatory regime on climate at the end of the Obama administration,” David G., director of the Laboratory on International Law and Regulation at the University of California, San Diego. Victor said. “Most of all, the Trump administration has actively rolled back.”

During his first months, Mr. Trump announced that he would withdraw the US from the 2015 Paris Climate Agreement, under which almost every country in the world vowed to reduce emissions of planet-warming pollution.

Domestically, Mr. Trump directed Andrew Wheeler, the current head of the Environmental Protection Agency, to disband a suite of key climate change regulations imposed by the Obama administration that targeted pollution from the country’s three largest sources of greenhouses Was designed for Emissions: Coal-based power plants, auto tailpipe and oil and gas drilling sites. Taken together, those regulations represented the country’s first significant step towards reducing greenhouse gases, while placing the world’s largest economy at the forefront of the global effort to fight climate change.

Now they are in shabby condition.

In August, the EPA completed the legal process to roll back regulations on methane, a powerful climate-hot gas emitted from leaks and flares in oil and gas wells. In April, it completed its rollback of regulations on tailpipe greenhouse pollution. And in June 2019, it replaced an Obama-era rule that reduced emissions for coal plants with a new rule to reduce emissions, allowing the plants to continue to pollute more.

If Mr. Biden is elected, he has vowed to reopen the Paris Agreement and to reinforce those rules to enforce stronger regulations that promote the development of renewable energy sources such as wind and solar. Spend up to 2 trillion.

But experts said rebuilding the US climate change legacy could take much longer than that – or its ability to persuade other governments to take similar action. This is a profound result, experts said, because climate change is a global problem and cannot be reduced meaningfully until the world’s biggest polluters work in all concerts.