Half of China Hit by Drought in Worst Heatwave on Record

A tree trunk lies on the dried-up riverbed of the Jialing river, a tributary of the Yangtze, that is approaching record-low water levels in Chongqing, China, August 18, 2022. REUTERS/Thomas Peter
A tree trunk lies on the dried-up riverbed of the Jialing river, a tributary of the Yangtze, that is approaching record-low water levels in Chongqing, China, August 18, 2022. REUTERS/Thomas Peter
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Half of China Hit by Drought in Worst Heatwave on Record

A tree trunk lies on the dried-up riverbed of the Jialing river, a tributary of the Yangtze, that is approaching record-low water levels in Chongqing, China, August 18, 2022. REUTERS/Thomas Peter
A tree trunk lies on the dried-up riverbed of the Jialing river, a tributary of the Yangtze, that is approaching record-low water levels in Chongqing, China, August 18, 2022. REUTERS/Thomas Peter

A crippling drought exacerbated by a record heat wave has spread out across half of China and reached the normally frigid Tibetan Plateau, according to official data released ahead of more searing temperatures on Thursday.

The world's second-largest economy has been hit by heatwaves, flash floods and droughts -- phenomena that scientists say are becoming more frequent and intense due to climate change, AFP said.

Southern China has recorded its longest continuous period of high temperatures since records began more than 60 years ago, the agriculture ministry said this week.

Experts have said the intensity, scope and duration of the heatwave could make it one of the worst recorded in global history.

A chart from the National Climate Centre showed Wednesday that swathes of southern China -- including the Tibetan Plateau -- were experiencing "severe" to "extraordinary" drought conditions.

The worst-affected area -- the Yangtze river basin, stretching from coastal Shanghai to Sichuan province in China's southwest -- is home to over 370 million people and contains several manufacturing hubs including the megacity of Chongqing.

The China Meteorological Administration predicted continued high temperatures of up to 40 degrees Celsius (104 degrees Fahrenheit) in Chongqing and the provinces of Sichuan and Zhejiang Thursday.

But some regions gained relief from the heatwave. Parts of southwestern Sichuan were battered by heavy rains overnight, causing the evacuation of almost 30,000 people, state broadcaster CCTV reported.

And in the southeast, Typhoon Ma-on made landfall in coastal Guangdong province and Hong Kong Thursday morning.

"High temperatures have basically been alleviated in the regions of south China, Jiangxi and Anhui," the meteorological administration said.

"But high temperatures will continue for the next three days in regions including the Sichuan basin and provinces surrounding Shanghai."

- 'Severe threat' -
China's State Council on Wednesday announced a 10 billion yuan ($1.45 billion) subsidy to support rice farmers experiencing drought conditions which authorities have warned pose a "severe threat" to this year's autumn harvest.

China produces more than 95 percent of the rice, wheat and maize it consumes, but a reduced harvest could mean increased demand for imports in the world's most populous country -- putting further pressure on global supplies already strained by the conflict in Ukraine.

Wednesday's CCTV evening news broadcast showed trucks supplying villagers who lacked drinking and agricultural water in rural Sichuan and Chongqing, with remote mountain areas particularly hard-hit.

Chongqing and Sichuan have also been battling wildfires since last week, exacerbated by high temperatures and water scarcity.

Temperatures as high as 45 degrees Celsius (113 Fahrenheit) have led multiple Chinese provinces to impose industrial power cuts, as cities struggle to cope with a surge in demand for electricity.

Record low water levels on the Yangtze River have also put pressure on the region's hydropower generators.

Recent heat broke records in Sichuan, where one county recorded a temperature of 44 degrees Celsius (111 Fahrenheit) Wednesday.



Killer Whales Spotted Grooming Each Other with Seaweed

This handout frame grab taken from video footage provided by whale rescue group Organization for the Rescue and Research of Cetaceans in Australia (ORRCA) on June 9, 2025 shows a distressed humpback whale tangled in a rope swimming south of Sydney Harbour. (Photo by Handout and Clay Sweetman / ORRCA / AFP)
This handout frame grab taken from video footage provided by whale rescue group Organization for the Rescue and Research of Cetaceans in Australia (ORRCA) on June 9, 2025 shows a distressed humpback whale tangled in a rope swimming south of Sydney Harbour. (Photo by Handout and Clay Sweetman / ORRCA / AFP)
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Killer Whales Spotted Grooming Each Other with Seaweed

This handout frame grab taken from video footage provided by whale rescue group Organization for the Rescue and Research of Cetaceans in Australia (ORRCA) on June 9, 2025 shows a distressed humpback whale tangled in a rope swimming south of Sydney Harbour. (Photo by Handout and Clay Sweetman / ORRCA / AFP)
This handout frame grab taken from video footage provided by whale rescue group Organization for the Rescue and Research of Cetaceans in Australia (ORRCA) on June 9, 2025 shows a distressed humpback whale tangled in a rope swimming south of Sydney Harbour. (Photo by Handout and Clay Sweetman / ORRCA / AFP)

Killer whales have been caught on video breaking off pieces of seaweed to rub and groom each other, scientists announced Monday, in what they said is the first evidence of marine mammals making their own tools.

Humans are far from being the only member of the animal kingdom that has mastered using tools. Chimpanzees fashion sticks to fish for termites, crows create hooked twigs to catch grubs and elephants swat flies with branches.

Tool-use in the world's difficult-to-study oceans is rarer, however sea otters are known to smash open shellfish with rocks, while octopuses can make mobile homes out of coconut shells.

A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of orcas., AFP reported.

Scientists have been monitoring the southern resident killer whales in the Salish Sea, between Canada's British Columbia and the US state of Washington, for more than 50 years.

Rachel John, a Masters student at Exeter University in the UK, told a press conference that she first noticed "something kind of weird" going on while watching drone camera footage last year.

The researchers went back over old footage and were surprised to find this behavior is quite common, documenting 30 examples over eight days.

One whale would use its teeth to break off a piece of bull kelp, which is strong but flexible like a garden hose.

It would then put the kelp between its body and the body of another whale, and they would rub it between them for several minutes.

The pair forms an "S" shape to keep the seaweed positioned between their bodies as they roll around.

Whales are already known to frolic through seaweed in a practice called "kelping".

They are thought to do this partly for fun, partly to use the seaweed to scrub their bodies to remove dead skin.

The international team of researchers called the new behavior "allokelping," which means kelping with another whale.

They found that killer whales with more dead skin were more likely to engage in the activity, cautioning that it was a small sample size.

Whales also tended to pair up with family members or others of a similar age, suggesting the activity has a social element.

The scientists said it was the first known example of a marine mammal manufacturing a tool.

Janet Mann, a biologist at Georgetown University not involved in the study, praised the research but said it "went a bit too far" in some of its claims.

Bottlenose dolphins that use marine sponges to trawl for prey could also be considered to be manufacturing tools, she told AFP.

And it could be argued that other whales known to use nets of bubbles or plumes of mud to hunt represent tool-use benefitting multiple individuals, another first claimed in the paper, Mann said.

Michael Weiss, research director at the Center for Whale Research and the study's lead author, said it appeared to be just the latest example of socially learned behavior among animals that could be considered "culture".

But the number of southern resident killer whales has dwindled to just 73, meaning we could soon lose this unique cultural tradition, he warned.

"If they disappear, we're never getting any of that back," he said.

The whales mainly eat Chinook salmon, whose numbers have plummeted due to overfishing, climate change, habitat destruction and other forms of human interference.

The orcas and salmon are not alone -- undersea kelp forests have also been devastated as ocean temperatures rise.

Unless something changes, the outlook for southern resident killer whales is "very bleak," Weiss warned.