Montana’s Supreme Court on Wednesday upheld a landmark climate ruling that said the state was violating residents’ constitutional right to a clean environment by permitting oil, gas and coal projects without regard for global warming.

The justices, in a 6-1 ruling, rejected the state’s argument that greenhouse gases released from Montana fossil fuel projects are minuscule on a global scale and reducing them would have no effect on climate change, likening it to asking: “If everyone else jumped off a bridge, would you do it too?”

The plaintiffs can enforce their environmental rights “without requiring everyone else to stop jumping off bridges or adding fuel to the fire,” Chief Justice Mike McGrath wrote for the majority. “Otherwise the right to a clean and healthful environment is meaningless.”

Only a few other states, including Hawaii, Illinois, Pennsylvania, Massachusetts and New York, have similar environmental protections enshrined in their constitutions.  The lawsuit filed in 2020 by 16 Montanans —who are now ages 7 to 23 — was considered a breakthrough in attempts by young environmentalists and their attorneys to use the courts to leverage action on climate change.

“This ruling is a victory not just for us, but for every young person whose future is threatened by climate change,” lead plaintiff Rikki Held said in a statement Wednesday.

During the 2023 trial in state District Court, the young plaintiffs described how climate change profoundly affects their lives: worsening wildfires foul the air they breathe, while drought and decreased snowpack deplete rivers that sustain farming, fish, wildlife and recreation and affect Native traditions.

Going forward, Montana must “carefully assess the greenhouse gas emissions and climate impacts of all future fossil fuel permits,” said Melissa Hornbein, an attorney with the Western Environmental Law Center and attorney for the plaintiffs.

Republican Gov. Greg Gianforte said the state was still reviewing the decision, but warned of “perpetual lawsuits that will waste taxpayer dollars and drive up energy bills for hardworking Montanans.”

“This decision does nothing more than declare open season on Montana’s all-of-the-above approach to energy,” he said, which promotes using both fossil fuels and renewables.

A day earlier, Gianforte held meetings on how the state can increase energy production, which involved energy suppliers, large energy consumers, public utility companies, transmission stakeholders and legislators.

Incoming Senate President Matt Regier and House Speaker Brandon Ler, both Republicans, joined Gianforte in alleging the justices were overstepping their authority and had strayed into making policy.

“Judicial reform was already a top priority for Republican lawmakers,” Regier and Ler said, warning the justices to “buckle up.”

Montana courts have blocked or overturned numerous laws passed by Republicans in the 2021 and 2023 legislative sessions as being unconstitutional, including laws to limit access to abortion.

In seeking to overturn the District Court ruling, the state had argued the plaintiffs should be required to challenge individual fossil fuel development permits as they’re issued — which would have involved trying to challenge even smaller amounts of emissions.

Carbon dioxide, which is released when fossil fuels are burned, traps heat in the atmosphere and is largely responsible for the warming of the climate. June brought record warm global temperatures for the 13th straight month, according to European climate service Copernicus. The streak ended in July.

Montana’s Constitution requires agencies to “maintain and improve” a clean environment. A law signed by Gianforte last year said environmental reviews may not consider climate impacts unless the federal government makes carbon dioxide a regulated pollutant. The Montana Supreme Court’s ruling found that law to be unconstitutional.

Workers at seven Amazon facilities went on strike Thursday, an effort by the Teamsters to pressure the e-commerce company for a labor agreement during a key shopping period.

The Teamsters say the workers, who authorized strikes in the past few days, are joining the picket line after Amazon ignored a Sunday deadline the union set for contract negotiations. Amazon says it doesn’t expect an impact on its operations during what the union calls the largest strike against the company in U.S. history.

The International Brotherhood of Teamsters say they represent nearly 10,000 workers at 10 Amazon facilities, a small portion of the 1.5 million people Amazon employs in its warehouses and corporate offices.

At one warehouse, located in New York City’s Staten Island borough, thousands of workers who voted for the Amazon Labor Union in 2022 and have since affiliated with the Teamsters. At the other facilities, employees - including many delivery drivers - have unionized with them by demonstrating majority support but without holding government-administered elections.

The strikes happening Thursday are taking place at one Amazon warehouse in San Francisco, California, and six delivery stations in southern California, New York City; Atlanta, Georgia, and Skokie, Illinois, according to the union’s announcement. Amazon workers at the other facilities are “prepared to join,” the union said.

“Amazon is pushing its workers closer to the picket line by failing to show them the respect they have earned,” Teamsters General President Sean M. O’Brien said in a statement.

The Seattle-based online retailer has been seeking to re-do the election that led to the union victory at the warehouse on Staten Island, which the Teamsters now represent. In the process, the company has filed a lawsuit challenging the constitutionality of the National Labor Relations Board.

TikTok on Monday asked the Supreme Court to step in on an emergency basis to block the federal law that would ban the popular platform in the United States unless its China-based parent company agreed to sell it.

Lawyers for the company and China-based ByteDance urged the justices to step in before the law’s Jan. 19 deadline. A similar plea was filed by content creators who rely on the platform for income and some of TikTok’s more than 170 million users in the U.S.

“A modest delay in enforcing the Act will create breathing room for this Court to conduct an orderly review and the new Administration to evaluate this matter — before this vital channel for Americans to communicate with their fellow citizens and the world is closed,” lawyers for the companies told the Supreme Court.

President-elect Donald Trump, who once supported a ban but then pledged during the campaign to “save TikTok,” said his administration would take a look at the situation.

“As you know, I have a warm spot in my heart for TikTok,” Trump said during a news conference at his Mar-a-Lago club in Florida. His campaign saw the platform as a way to reach younger, less politically engaged voters.

Trump was meeting with TikTok CEO Shou Zi Chew at Mar-a-Lago on Monday, according to two people familiar with the president-elect’s plans who were not authorized to speak publicly about them and spoke to The Associated Press on condition of anonymity.

The companies have said that a shutdown lasting just a month would cause TikTok to lose about a third of its daily users in the U.S. and significant advertising revenue.

The case could attract the court’s interest because it pits free speech rights against the government’s stated aims of protecting national security, while raising novel issues about social media platforms.

The request first goes to Chief Justice John Roberts, who oversees emergency appeals from courts in the nation’s capital. He almost certainly will seek input from all nine justices.

On Friday, a panel of federal judges on the U.S. Court of Appeals for the District of Columbia Circuit denied an emergency plea to block the law, a procedural ruling that allowed the case to move to the Supreme Court.