On a steep mountainside where walls of flames torched the forest on their way toward Lake Tahoe in 2021, blackened trees stand in silhouette against a gray sky.

"If you can find a live tree, point to it," Hugh Safford, an environmental science and policy researcher at the University of California, Davis, said touring damage from the Caldor Fire, one of the past decade's many massive blazes.

Hurricane Otis slammed into Mexico's southern Pacific coast as a catastrophic Category 5 hurricane early Wednesday, bringing dangerous winds and heavy rain to Acapulco and surrounding towns, stirring memories of a 1997 storm that killed dozens of people.

A strong Category 2 storm by Wednesday morning, the hurricane was expected to continue to weaken quickly in Guerrero state's steep mountains. But the 5 to 10 inches (13 to 25 centimeters) of rain forecast, with as much as 15 inches (38 centimeters) possible in some areas, raised the threat of landslides and floods.

Tensions from the war in Gaza could help accelerate the move away from planet-warming fossil fuels like oil and gas and toward renewable energy, electric cars and heat pumps — similar to how sharp increases in the price of oil during the 1970s unleashed efforts to conserve fuel, the head of the International Energy Agency said.

"Today we are again facing a crisis in the Middle East that could once again shock oil markets," said IEA Executive Director Fatih Birol. That comes on top of the stress on energy markets from Russia's cutoff of natural gas to Europe over its invasion of Ukraine, he said.

Gale-force winds and floods struck several countries in Northern Europe as the region braced for more heavy rain on Friday. In Scotland, one person was reported dead after being swept into a river and authorities searched for a man thought to be trapped in his vehicle.

The gale-force winds are expected to hit hardest in the eastern part of Denmark's Jutland peninsula and the Danish islands in the Baltic Sea. But the northern part of the British Isles, southern Sweden and Norway, and northern Germany are also on the path of the storm, named Babet by U.K.'s weather forecaster, the Met Office.

Changes in the climate and land use are combining to dramatically shrink the numbers of insects pollinating key tropical crops. As those problems intertwine and intensify, it likely will hit coffee lovers right in the mug, according to a new study.

And that one-two punch will melt some chocolate fans' dreams too, scientists said.

Dozens of people were evacuated from their homes in Argentina's central Cordoba province on Tuesday as wildfires grew amid an intense heat wave.

Images and video from the area showed massive flames in hills surrounding populated areas as firefighters worked to combat the flames that had reached some homes in the region. It was not immediately clear how many homes had been affected by the flames.

Flooding triggered by heavy monsoon rains in Myanmar's southern areas has displaced more than 14,000 people and disrupted traffic on the rail lines that connect the country's biggest cities, officials and state-run media said.

State television MRTV reported Monday evening that the number of displaced people in Bago township, about 68 kilometers (42 miles) northeast of Yangon, the country's biggest city, had climbed to that figure, and they were taking shelter in 36 relief camps. It said almost 1,000 more people in Mon state's township, just east of Bago, were sheltering in three relief camps, and there some evacuations in a northern part of Yangon.

Storms, floods, fires and other extreme weather events led to more than 43 million displacements involving children between 2016 and 2021, according to a United Nations report.

More than 113 million displacements of children will occur in the next three decades, estimated the UNICEF report released Friday, which took into account risks from flooding rivers, cyclonic winds and floods that follow a storm.

Whales, dolphins and seals living in U.S. waters face major threats from warming ocean temperatures, rising sea levels and decreasing sea ice volumes associated with climate change, according to a first-of-its-kind assessment.

Researchers with the National Oceanic and Atmospheric Administration examined more than 100 stocks of American marine mammal species and found more than 70% of those stocks are vulnerable to threats, such as loss of habitat and food, due to the consequences of warming waters. The impacts also include loss of dissolved oxygen and changes to ocean chemistry.

Hundreds of rescuers dug through slushy debris and fast-flowing, icy water Friday in a search for survivors after a glacial lake overflowed and burst through a dam in India's Himalayan north, a disaster that many had warned was possible for years.

The flood began in the early hours of Wednesday, when water overflowed a high mountain lake with enough force to break through the concrete of a major hydroelectric dam downstream. It then poured into the valley below, where it killed at least 31 people. One hundred are still missing, officials said, while thousands of people have had to flee their homes.