China’s Glacier Area Shrinks by 26% Over Six Decades 

Meltwater from the Laohugou No. 12 glacier, flows though the Qilian mountains, Subei Mongol Autonomous County in Gansu province, China, September 27, 2020. (Reuters)
Meltwater from the Laohugou No. 12 glacier, flows though the Qilian mountains, Subei Mongol Autonomous County in Gansu province, China, September 27, 2020. (Reuters)
TT
20

China’s Glacier Area Shrinks by 26% Over Six Decades 

Meltwater from the Laohugou No. 12 glacier, flows though the Qilian mountains, Subei Mongol Autonomous County in Gansu province, China, September 27, 2020. (Reuters)
Meltwater from the Laohugou No. 12 glacier, flows though the Qilian mountains, Subei Mongol Autonomous County in Gansu province, China, September 27, 2020. (Reuters)

China's glacier area has shrunk by 26% since 1960 due to rapid global warming, with 7,000 small glaciers disappearing completely and glacial retreat intensifying in recent years, official data released in March showed.

Glaciers around the globe are disappearing faster than ever, with the largest glacial mass loss on record taking place in the last three years, according to a UNESCO report.

As the important water towers continue to shrink, less availability of freshwater is expected to contribute to greater competition for water resources, environmental groups have warned. Glacier retreat also poses new disaster risks.

China's glaciers are located mainly in the west and north of the country, in the regions of Tibet and Xinjiang, and the provinces of Sichuan, Yunnan, Gansu and Qinghai.

Data published on March 21 on the website of the Northwest Institute of Eco-Environment and Resources of the Chinese Academy of Sciences, showed that China's total glacier area was around 46,000 square kilometers, with around 69,000 glaciers in 2020.

This compares to around 59,000 square kilometers and around 46,000 glaciers in China between 1960 and 1980, the study showed.

To save its melting glaciers, China has used technology including snow blankets and artificial snow systems, to delay the melting process.

The Tibetan plateau is known as the world's Third Pole for the amount of ice long locked in the high-altitude wilderness.

The dramatic ice loss, from the Arctic to the Alps, from South America to the Tibetan Plateau, is expected to accelerate as climate change, caused by the burning of fossil fuels, pushes global temperatures higher.

This would likely exacerbate economic, environmental and social problems across the world as sea levels rise and these key water sources dwindle, the UNESCO report said.



Killer Whales Found Sharing Food with Humans

FILE - Whales swim past as a fisherman stands in his boat at Boat Harbour north of Sydney, Australia, on June 12, 2023. (AP Photo/Mark Baker,File)
FILE - Whales swim past as a fisherman stands in his boat at Boat Harbour north of Sydney, Australia, on June 12, 2023. (AP Photo/Mark Baker,File)
TT
20

Killer Whales Found Sharing Food with Humans

FILE - Whales swim past as a fisherman stands in his boat at Boat Harbour north of Sydney, Australia, on June 12, 2023. (AP Photo/Mark Baker,File)
FILE - Whales swim past as a fisherman stands in his boat at Boat Harbour north of Sydney, Australia, on June 12, 2023. (AP Photo/Mark Baker,File)

Killer whales sometimes offer to share their prey with people, a new study finds, hinting that some intelligent orcas may be attempting to develop relationships with humans.

Pet animals such as cats sometimes leave prey at their owner’s feet or doorstep, often as a display of affection or as a sense of sharing food with “family.”

But such behavior hadn’t been documented among animals in the wild. Until now, that is.

The new study documenting orcas offering food to humans in the wild challenges assumptions about animal social behavior, revealing a poorly understood interplay between marine mammals and humans that’s playful and social.

In the new study, published in the Journal of Comparative Psychology, and reported by The Independent newspaper, researchers from Canada, New Zealand, and Mexico document 34 interactions over two decades involving orcas attempting to offer food to humans. These incidents took place across the world, in the oceans off California, New Zealand, Norway, and Patagonia.

“Orcas often share food with each other. It’s a prosocial activity and a way that they build relationships with each other,” study lead author Jared Towers said. “That they also share with humans may show their interest in relating to us as well.”

The researchers analyzed each of the 34 instances of food sharing and found that people were in the water when the orcas approached them on 11 occasions. In 21 instances the humans were on boats and in two instances they were on the shore.

In each of these cases, the killer whales approached the people on their own and dropped their prey in front of them. “This behavior may represent some of the first accounts of a wild predator intentionally using prey, and other items, to directly explore human behavior,” the researchers wrote.

“These features all suggest that killer whales possess the capacity and motivation to share for multiple reasons which could include short– or long-term tangible, intellectual, or emotional benefits, none of which are mutually exclusive.”

The researchers also found that the orcas waited around to see what would happen after they made the offering to humans in all but one instance.

The marine mammals also tried to be persuasive, offering the food more than once in seven cases after the people initially refused it.

Since orcas are intelligent and social animals, the researchers suspect food sharing may be a way to build relationships with kin and unrelated individuals.

As the killer whales often hunt large prey, they have food to spare.

“Offering items to humans could simultaneously include opportunities for killer whales to practice learned cultural behavior, explore or play and, in so doing, learn about, manipulate or develop relationships with us,” the study said.

The study also showed that, “Given the advanced cognitive abilities and social, cooperative nature of this species, we assume that any or all these explanations for, and outcomes of such behavior are possible.”