A 25-person startup is developing technology to block the sun and turn down the planet’s thermostat. The stakes are huge — and the company and its critics say regulations need to catch up.

The Department of Justice called the tax a “scheme to extort American citizens and businesses.”

A public outcry helped sink the proposal, but one top lawmaker said he expected the issue to resurface soon.

Governments across Europe, the Pacific islands, Latin America and Africa embraced the call. The United States did not.

The order comes days after business groups pressed the Supreme Court to stop the state's climate laws on First Amendment grounds.

The California Air Resources Board exhibits "growing hostility" to its EJ advisory panel, the co-chair said in her resignation letter.

Companies will have an extra year to comply with two provisions in the rule that were set to take effect on Dec. 10.

Tech companies are promoting AI to help solve global warming, while greens push regulations to soften AI’s environmental footprint.

India, the world’s third-largest polluter, has long argued that industrialized nations should carry a greater decarbonization burden.

Denmark’s climate minister announced Monday that his government would submit a binding target to cut emissions by 82 percent by 2035 compared with 1990 levels.

If countries follow their climate plans, global methane emissions in 2030 will be 8 percent below 2020 levels, a U.N. official said.

The destruction caused by the summer storms was enough that past presidents likely would have approved requests for federal assistance.

The state's top emergency official also is under discussion to lead FEMA. The agency's acting chief resigned Monday after a six-month stint.

In the Biden era, countries interested in clean energy “were motivated to buy things from the U.S.,” an African official says. But now Beijing has few rivals.

Liu Zhenmin also defended Beijing’s own climate efforts as “very ambitious.”

British and Brazilian officials hope for a change of heart after this month’s budget.

Business groups say the laws violate companies' First Amendment rights.

The NYU School of Law’s Institute for Policy Integrity says the costs of deregulation far exceeds the benefits.

AI has fueled a boom in new weather prediction tools, which are starting to replace forecasts that had been generated by supercomputers.

Earth and rocks collapsed on a bus in Khanh Hoa province Sunday night, killing six and trapping many passengers, state media reported.