China races to alleviate drought, power cuts amid record heatwave

Author of the article: SHANGHAI — China is scrambling to alleviate power shortages and bring more water to the drought-hit basin of the Yangtze river as it battles a record-breaking heatwave by deploying relief funds, seeding clouds and developing new sources of supply. For more than two months, baking temperatures have disrupted crop growth, threatened…
China races to alleviate drought, power cuts amid record heatwave

Author of the article:

SHANGHAI — China is scrambling to alleviate power shortages and bring more water to the drought-hit basin of the Yangtze river as it battles a record-breaking heatwave by deploying relief funds, seeding clouds and developing new sources of supply.

For more than two months, baking temperatures have disrupted crop growth, threatened livestock and forced industries in the hydropower-dependent regions of the southwest to shut down so as to ensure electricity supplies for homes.

China has repeatedly warned that it faces a proliferation of extreme weather events in coming years as it tries to adapt to climate change and rises in temperature that are likely to be more severe than elsewhere.

The current extreme heat is likely to stem from a “special case” of high pressure from a West Pacific subtropical high extending over much of Asia, said Cai Wenju, a researcher with Australia’s national scientific research institute, CSIRO.

On Wednesday, China’s southwestern province of Sichuan said it would ration power supplies to homes, offices and shopping malls, after having already ordered energy-intensive metals and fertilizer producers to curb operations.

In what appears to be an official call to cut back use of electricity, government offices were asked to set air conditioners no lower than 26 degrees Celsius (79 Fahrenheit) and use more staircases instead of lifts, the Sichuan Daily, run by the provincial government, said.

Fountains, light shows and commercial activities after dark are to be suspended, it added.

Power shortages have also prompted several companies in the sprawling Chongqing region bordering Sichuan to say they would suspend production.

Chinese vice premier Han Zheng visited the State Grid Corporation on Wednesday and said further efforts were needed to ensure power supply for residents and key industries, and to prevent power cuts, according to a state media report.

China should accelerate the construction of key projects, improve power load management and promote the joint operation of coal power and renewable energy, Han said.

SOARING TEMPERATURES

Hydropower makes up about 80% of Sichuan’s power capacity, but dwindling water flows on the Yangtze and its tributaries led to a struggle to meet mounting demand for air conditioning as temperatures soared to 40C(104F) and beyond.

Average precipitation in Sichuan is 51% less than that of previous years, according to state news agency Xinhua, which cited the provincial branch of State Grid.

Some reservoirs have dried up, after water from major rivers reduced by as much as half, it said.

Drought throughout the Yangtze river basin was also “adversely affecting” drinking water for rural people and livestock, as well as the growth of crops, the water resources ministry said in a notice.

It urged drought-hit regions to make plans to maintain water supply with steps such as temporary water transfer, the development of new sources and the extension of pipe networks.

To boost downstream supplies, China’s biggest hydropower project, the Three Gorges dam, will step up water discharges by 500 million cubic meters over the next 10 days, it said on Tuesday. Water flows there this week were about half those of a year earlier.

Some livestock from drought-hit areas had been temporarily moved elsewhere, the finance ministry said this week, promising disaster relief of 300 million yuan ($44.30 million).

On Wednesday, the central province of Hubei became the latest to unveil an effort to induce rainfall, by sending airplanes to fire the chemical silver iodide into the clouds.

Other regions on the Yangtze have also launched “cloud seeding” programs, but with cloud cover too thin, operations in some parched areas have stayed on standby.

China’s heatwave has run for 64 days, making it the longest since full records began in 1961, state media said, citing data from the National Climate Centre.

As many as 262 weather stations have recorded temperatures of 40C (104F) and above, also the highest such tally. Eight have seen 44C (111F).

High temperatures will persist until Aug. 26 in the Sichuan basin and large parts of central China, the center forecast. ($1=6.7718 yuan) (Reporting by David Stanway in Shanghai, Aizhu Chen in Singapore and the Beijing newsroom; Editing by Kim Coghill and Clarence Fernandez)

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