Climate and environment updates: Heat wave hot spots identified across the globe

It's all but certain that 2024 will be Earth's warmest year on record, surpassing 2023 as the previous record holder. While this troubling milestone measures global average temperatures, a new study from the Columbia Climate School found that unexplained extreme heat wave hot spots are popping up in specific areas worldwide.

Calling it "a striking new phenomenon," the study's authors write, "Distinct regions are seeing repeated heat waves that are so extreme, they fall far beyond what any model of global warming can predict or explain."

According to the study, "The large and unexpected margins by which recent regional-scale extremes have broken earlier records have raised questions about the degree to which climate models can provide adequate estimates of relations between global mean temperature changes and regional climate risks."

The study identified these hot spots on every continent except Antarctica. Researchers say the heat waves have mostly been a recent phenomenon, occurring primarily over the last five years, although some date back to the early 2000s and before.

Central China, Japan, Korea, the Arabian peninsula, eastern Australia and certain parts of Africa were the hardest-hit areas. The study, however, found that parts of Texas and New Mexico were also impacted, just not as much as the other regions.

"This is about extreme trends that are the outcome of physical interactions we might not completely understand," said lead author Kai Kornhuber, an adjunct scientist at the Columbia Climate School's Lamont-Doherty Earth Observatory, in a statement. "These regions become temporary hothouses."

The researchers say it's unclear what is causing these hot spots. While one study has pointed to wobbles in the jet stream as a possible culprit, the authors say that the hypothesis doesn't explain all the extremes.

Regardless of the cause, heat is the deadliest weather-related hazard in the United States. The Journal of the American Medical Association found that heat deaths in the U.S. have nearly doubled since 1999 and account for a 63% increase in health-related death rates between 1999-2023.

"Due to their unprecedented nature, these heat waves are usually linked to very severe health impacts, and can be disastrous for agriculture, vegetation and infrastructure," said Kornhuber. "We're not built for them, and we might not be able to adapt fast enough."

-ABC News Climate Unit's Matthew Glasser

The amount of food consumed every year at Thanksgiving is actually associated with a large carbon footprint, according to experts.

Although Thanksgiving may be the holiday best known for indulging, there are ways to enjoy your favorite meal of the year while keeping the environment in mind.

"The Thanksgiving meal is more than just the food," Lauri Wright, director of nutrition programs at the University of South Florida's College of Public Health, told ABC News. "There's so much meaning [and] emotions associated with it."

The average Thanksgiving dinner has a carbon footprint of about 103 pounds of carbon dioxide, according to the Climate Trade, an environmental solutions platform.

Here are some tips to have a more sustainable Thanksgiving.

Maine has become the latest in a growing number of states to sue the fossil fuel industry over the impacts of global warming.

Maine Attorney General Aaron Frey accused major fossil fuel companies of deceiving Mainers for decades about the impact their product has on human-amplified climate change.

"For over half a century, these companies chose to fuel profits instead of following their science to prevent what are now likely irreversible, catastrophic climate effects," Frey said in a statement.

The lawsuit, filed in state court on Tuesday, alleges the defendants knew as early as the 1960s that an increasing use of fossil fuels could potentially bring devastating consequences to Maine. The state argues the companies not only failed to warn residents about the consequences, but knowingly concealed their knowledge about the long-term negative impacts that Maine's people, environment and economy could face.

The filing states the companies focused on creating public doubt by launching public relations campaigns targeting the science of climate change and the impacts of burning fossil fuels. It is seeking financial compensation for both past and future climate-related damages and for the companies to cease their ongoing deception in Maine.

"They burdened the state and our citizens with the consequences of their greed and deception," Frey said.

Maine Gov. Janet Mills applauded the attorney general's actions, saying in a statement that "for decades, big oil companies have made record profits, taking billions out of the pockets of Maine people while deliberately deceiving them about the harmful impacts of fossil fuels -- impacts that Maine people see and feel every day."

Maine joins a growing list of more than 20 states -- including California, Minnesota, Massachusetts and Vermont -- that have brought similar types of lawsuits to date. Earlier this year, Vermont's Climate Superfund Act became law, seeking financial accountability for climate change-related damages brought by fossil fuel companies. However, due to stipulations in the law and likely lawsuits, it's expected to be several years before any potential first charge to fossil fuel companies would be attempted.

-ABC News meteorologist Dan Peck

Widespread drought conditions are still a significant concern across the country, with parts of the Northeast, northern Plains and Southwest currently experiencing some of the worst impacts, according to a U.S. Drought Monitor update released Wednesday.

Overall, more than 40% of the contiguous United States remains in a drought. This is an improvement, however, from the beginning of the month when more than half of the lower 48 faced drought conditions. Recent heavy rain along the West Coast and parts of the Midwest brought significant drought relief to portions of Washington, Oregon, Wisconsin and Illinois.

As a result, drought coverage decreased from 45.48% to 41.45% versus last week. While some regions experienced a notable improvement, the recent soaking in the Northeast was only enough to pause the fire danger and trend of intensifying drought conditions -- for now.

The current drought situation in the Northeast took months to evolve, and it will take several more rounds of significant rainfall over the span of weeks or even months to completely eliminate the widespread drought in the region.

After a few rounds of beneficial rain, the National Oceanic and Atmospheric Administration's Climate Prediction Center says a large part of the country will likely experience below-average precipitation in early December, particularly in the West, Plains and East Coast.

Much of the western Gulf Coast and northern Plains could see above-average rainfall during this period. Drought relief across the country will, at the very least, take a pause through the beginning of next month.

-ABC News meteorologist Dan Peck