Since Russia and Ukraine together supply 30% of global wheat exports, a big chunk of the world is losing access to food.

Now one of the U.S.' biggest foundations is trying to deal with some of these challenges with a $105 million plan to improve food access, make nutritious and healthy food more widely available, and advance production of food in ways that does not harm the planet.

Temperatures on Earth will shoot past a key danger point unless greenhouse gas emissions fall faster than countries have committed, the world's top body of climate scientists have said, warning of the consequences of inaction but also noting hopeful signs of progress.

U.N. Secretary-General Antonio Guterres said the report by the Intergovernmental Panel on Climate Change revealed "a litany of broken climate promises" by governments and corporations, accusing them of stoking global warming by clinging to harmful fossil fuels.

In a rare emergency move, the U.S. government has temporarily declared a northern Nevada toad endangered, saying a geothermal power plant in the works could result in its extinction.

The Fish and Wildlife Service announced it is formally proposing a rule to list the Dixie Valley toad as an endangered species subject to 60 days of public comment under the Endangered Species Act's normal rulemaking process.

The U.N. health agency says nearly everybody in the world breathes air that doesn't meet its standards for air quality, calling for more action to reduce fossil-fuel use, which generates pollutants that cause respiratory and blood-flow problems and lead to millions of preventable deaths each year.

The World Health Organization, about six months after tightening its guidelines on air quality, on Monday issued an update to its database on air quality that draws on information from a growing number of cities, towns, and villages across the globe — now totaling over 6,000 municipalities.

Many species of birds are nesting and laying eggs nearly a month earlier than they did 100 years ago in the Chicago area and researchers believe climate change is behind it.

Those were among the findings in a new study published in the Journal of Animal Ecology. Researchers compared recent observations with century-old eggs preserved in museum collections.

For hundreds of years, raging blast furnaces — fed with coking coal — have forged steel used in cars, railways, bridges and skyscrapers.

But the puffs of coal-fired smoke are a big source of carbon dioxide, the heat-trapping gas that's driving climate change.

French vintners are lighting candles to thaw their grapevines to save them from a late frost following a winter warm spell, a temperature swing that is threatening fruit crops in multiple countries.

Ice-coated vines stretched across hillsides around Chablis as the Burgundy region woke Monday to temperatures of minus 5 C (23 F). Fruit growers are worried that the frost will kill off large numbers of early buds, which appeared in March as temperatures rose above 20 C (68 F), and disrupt the whole growing season.

A report by the World Wildlife Fund shows illegal purchases of wildlife online are growing in Myanmar in a threat both to public health and to endangered species.

The report issued Friday found that enforcement of bans on such transactions has weakened amid political turmoil following a 2021 military takeover.

Mexican and American officials have met amid disagreements about an electrical power reform that seeks to limit foreign-built renewable energy plants and grant a majority market share to Mexico's state-owned power utility.

President Andrés Manuel López Obrador met with U.S. Climate Envoy John Kerry, but the Mexican leader appeared unwilling to budge on the proposal, which is currently stuck in Mexico's Congress.

The head of the United Nations has announced the appointment of an expert panel led by Canada's former environment minister to scrutinize whether companies' efforts to curb climate change are credible or mere " greenwashing."

Recent years have seen an explosion of pledges by businesses — including oil companies — to reduce their greenhouse gas emissions to "net zero" amid consumer expectations that corporations bear part of the burden of cutting pollution. But environmental campaigners say many such plans are at best unclear, at worst designed to make companies look good when they are actually fueling global warming.