Climate and environment updates: Nations unveil plans to cut greenhouse gas emissions

With the future of U.S. climate and environmental policies uncertain following the presidential election, the world is gathering in Baku, Azerbaijan, to talk climate change. COP29, formally known as the 29th Annual Conference of Parties, opened Monday with questions about the United States' commitment to global climate goals in light of the 2024 election results.

At a press conference on Monday, U.S. Climate Change Envoy John Podesta told reporters, "For those of us dedicated to climate action, last week's outcome in the United States is obviously bitterly disappointing."

"It is clear that the next administration will try to take a U-turn and reverse much of this progress," Podesta said. "And I know that this disappointment is more difficult to tolerate as the dangers we face grow ever more catastrophic," he added.

In sharp contrast to President-elect Donald Trump calling climate change a hoax, promising to "drill, baby, drill," and roll back unused Inflation Reduction Act (IRA) funds, Podesta highlighted the Biden-Harris Administration's efforts to combat climate change, including the move to rejoin the Paris Agreement and the climate and clean energy investments made through the IRA and the Bipartisan Infrastructure Law.

Podesta said that while the Biden Administration will work with the incoming Trump Administration to ensure a peaceful transfer of power, "This is not the end of our fight for a cleaner, safer planet."

"Facts are still facts. Science is still science," he added. "The fight is bigger than one election, one political cycle in one country, this fight is bigger still, because we are all living through a year defined by the climate crisis in every country of the world."

Podesta pointed to extreme heat records, recent hurricanes in the Southeast United States, flooding in Spain, severe drought in southern Africa, and wildfires in the Amazon as some examples of the acute impacts of climate change felt around the world just this year.

Following then-President Trump's withdrawal from the Paris Agreement in 2017, a coalition of local and state government leaders, organizations and private industry members announced the joint declaration, "We Are Still In."

Podesta reminded attendees of that effort, saying that while a Trump White House may pose challenges for federal level climate action, the U.S. is not giving up on its goals and that support for clean energy has become a bipartisan issue in the United States.

"You might not know that by reading the newspapers, but it has," he said. "Fifty-seven percent of new clean energy jobs created since the Inflation Reduction Act passed are located in congressional districts represented by Republicans."

He added, "We can and will make real progress on the backs of our climate committed states and cities, our innovators, our companies and our citizens, especially young people, who understand more than most that climate change poses an existential threat that we cannot afford to ignore. Failure or apathy is simply not an option."

-ABC News Climate Unit's Kelly Livingston and Matthew Glasser

Food waste is a massive problem. According to the UN, the world wastes more than a billion tons annually. Here at home, Americans waste around 80 million tons each year. And worldwide, nearly 40% of all the food we produce is lost or wasted, according to the WWF.

At the same time, Feeding America, a nationwide network of food banks and pantries, says 47 million people in the U.S. face hunger, including 1 in 5 children. Then, there are the significant environmental impacts of sending so much wasted food to landfills. Left to decompose, this organic waste releases methane, a powerful greenhouse gas that's far more potent than carbon dioxide.

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How AI is being used to tackle food waste

ABC News Ginger Zee reports on how Georgia State University is using AI to alleviate food waste after more than a billion tons of leftover food in landfills contribute to rising levels of methane gas.

ABCNews.com

Erin Murphy, a student at Georgia State University in Atlanta and a sustainability initiatives intern, saw all the food her peers were wasting and wanted to do something about it. She applied for a grant to bring new technology to campus that uses artificial intelligence to examine food waste and provide real-time data on what's left behind.

The technology, aptly named "Raccoon Eyes," analyzes the food left on each plate, categorizing and weighing the leftovers to provide detailed data on the waste and recommendations for reducing the leftovers.

When students finish their meals, they place their plates on a conveyor belt, where "Raccoon Eyes" captures an image of the plate. AI then uses that picture to evaluate the contents. This data is displayed on an online dashboard, offering real-time insights to the dining staff.

Ivan Zou, the co-founder of "Raccoon Eyes," said the information helps identify trends, such as how many plates of a specific meal were uneaten. For example, the system showed that students ate most of the salmon they put on their plates during a particular meal, but they left behind a lot of French fries during another meal.

Jennifer Wilson, GSU's director of sustainability, said that since the program's launch in January, AI has analyzed over 400,000 plates and found that approximately 21% contained food waste.

And it turns out that some of the most popular items, like chicken, pizza, and french fries, also generate the most waste. The dashboard's detailed feedback, however, also reveals that popular meals often have leftover portions because students take too much, not because the food is unpopular. This nuanced insight helps dining services adjust not only the menu but also portion sizes and serving methods.

The initiative is already making a difference. In the first four months, GSU reduced food waste by 23%, thanks to AI insights and increased student awareness.

The program even encourages feedback through a kiosk where students can leave comments like "sorry for my waste." Such feedback has proven invaluable, guiding the dining team in refining their offerings, for instance, by making more of the crowd-favorite Hot Cheetos sushi and less of other items.

-ABC News Climate Unit's Matthew Glasser, ABC News' Matt German, and ABC News meteorologist Dan Manzo

Heading into November, widespread drought conditions are still a significant concern across the country, with the Northeast currently experiencing some of the worst impacts, according to a U.S. Drought Monitor update released Thursday.

Overall, more than half of the contiguous United States is still grappling with drought. But there are some areas where things are improving slightly. A large swath of the central U.S. saw its drought situation improve, according to the data.

As a result, countrywide drought coverage decreased from 54.08% to 51.89% week over week. Moderate to severe drought conditions expanded in the Northeast, with portions of southern New Jersey now experiencing extreme drought conditions. Recent heavy rain in the Southern Plains brought drought improvements to parts of Texas, Oklahoma and Kansas.

October was one of the driest months on record for the U.S., triggering a significant increase in the area and severity of drought conditions. While the overall drought coverage has decreased slightly, over 87% of the lower 48 states continue to experience abnormally dry conditions, the most extensive coverage area ever recorded by the U.S. Drought Monitor, which began tracking the data in 2000.

Drought is a complex phenomenon influenced by various factors. Among these, extreme heat is strongly linked to human-amplified climate change. More frequent and intense extreme heat events can worsen the effects of drought. Drought risk has increased in the Southwest over the past century, according to the federal government's Fifth National Climate Assessment.

Over the next week, measurable rain is forecast across most of the country, with widespread significant rainfall likely across portions of the Midwest, Plains and Pacific Northwest.

Looking ahead, NOAA's Climate Prediction Center said most of the country will likely experience above-average precipitation in mid-November, particularly in the Midwest, Plains and West. Most of the East Coast and Gulf Coast can expect near-average rainfall during this period. No part of the nation should experience below-average precipitation during this time.

-ABC News meteorologist Dan Peck and ABC News Climate Unit's Matthew Glasser

It's now virtually certain that 2024 will surpass 2023 as Earth's warmest year on record, according to a new report by Copernicus, the European Union's Climate Change Service. As of October 2024, the average global year-to-date temperature was 0.16 degrees Celsius (or 0.29 degrees Fahrenheit) higher than it was in 2023, which is the warmest year ever recorded.

While .16 degrees may not seem significant, even small global temperature increases can trigger substantial changes in weather patterns, leading to more extreme events like heatwaves, droughts, floods, and wildfires, according to climate scientists at NASA.

Last month was also the second warmest October globally, with an average temperature of 15.25 degrees Celsius, or 59.45 degrees Fahrenheit.

Copernicus noted that 2024 will likely be the first year to be 1.5 degrees Celsius warmer (2.7 degrees Fahrenheit) than the pre-industrial average of 1850-1900.

The global average temperature over the past twelve months (November 2023 through October 2024) was 1.62 degrees Celsius or 2.92 degrees Fahrenheit above pre-industrial levels.

The Paris Agreement goals aim to limit global warming to 1.5 degrees Celsius to prevent the worst outcomes of climate change.

Global daily sea surface temperatures across most of the world's oceans remain well above average, including much of the Atlantic Basin. Unusually warm sea surface temperatures can make hurricanes more intense and may play a role during the remainder of the Atlantic Hurricane Season, which ends on November 30th.

Persistent marine heatwaves are also a major concern for the world's coral reefs as the largest global coral bleaching event on record continues to impact these delicate ecosystems. The National Oceanic and Atmospheric Administration (NOAA) says that nearly 77% of the world's coral reef areas have experienced bleaching-level heat stress during this latest event, the second global coral reef bleaching event in the last 10 years.

-ABC News meteorologist Dan Peck and ABC News Climate Unit's Matthew Glasser