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In the latest edition, we focus on a heat wave in China, how Canadian wildfires are affecting Europe͏‌  ͏‌  ͏‌  ͏‌  ͏‌  ͏‌ 
 
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June 28, 2023
semafor

Net Zero

Climate
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Prashant Rao
Prashant Rao

Welcome — or welcome back — to Net Zero, where I’m substitute-teaching for Tim the next couple weeks. Please don’t fire spitballs at me while I write my name on the chalkboard.

One of the coming challenges of more-extreme temperatures is the stress they will place on the world’s energy infrastructure: As summers lengthen and the world heats up, a richer world will use power-hungry air conditioning more. In China, that surging demand is already happening. But it comes as the country’s main hydropower-producing region suffers a major decline in rainfall. The upshot, as Xiaoying You writes for us today, is growing worry over potential blackouts and factory closures. Because China is such a crucial hub in global supply chains, that could affect everyone.

Also in today’s newsletter, the author of a new book about the climate crisis reassures me that flying long-haul and eating steak is nothing to feel guilty about, smoke from Canada’s wildfires has reached Europe (where I live), and how you could one day have a truly carbon-neutral pint of beer.

Any feedback — positive, negative, amused, angry — is welcome! Just hit reply and let me know what you think.

Warmups

The U.K. is moving too slowly to cut greenhouse gas emissions by the end of this decade, and its chances of achieving its climate goals are getting slimmer, an independent government advisory body said. In particular, it noted that development of wind farms and solar facilities needed to accelerate. But with central banks worldwide — including the Bank of England — raising interest rates, increased deployment of renewable energy, which is more dependent on upfront investment and loans than fossil fuels are, could be difficult.

China opened what it said was the world’s largest hybrid solar-hydro power plant, capable of generating a combined 4 GW of electricity. The huge facility in the eastern Tibetan plateau is part of plans by Beijing to eventually generate clean power for 100 million households along the Yalong River. The new plant aims to offset solar power’s variability with the consistency of hydro.

John Goodenough, who shared a Nobel Prize for helping develop the rechargeable lithium-ion battery, died aged 100. Goodenough’s work underpins the entire energy transition, forming the basis of the electric cars, wireless electronics, and the overall grid infrastructure that is fueling the world’s shift away from fossil fuels. As the veteran climate journalist Bill McKibben put it, he was “a 20th century man, setting the scene for the 21st.”

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Xiaoying You

What a Chinese heat wave means for the world

REUTERS/Tingshu Wang

THE NEWS

China’s electricity-generating southwestern provinces face another uphill battle this summer to meet electricity demand for themselves and other key provinces, including major economic hubs and manufacturing centers that drive the Chinese and global economies.

Shortfalls last year forced factory closures, hitting companies at home and abroad that rely on Chinese manufacturing. This year, soaring temperatures and a post-pandemic economic recovery are expected to drive up electricity consumption, while scarce rainfall could further hamper the region’s crucial hydropower output.

Still, experts I spoke to cautioned that this year’s situation would not be as bad as last summer, pointing to milder — if still brutal — temperatures and better-prepared local authorities.

XIAOYING’S VIEW

One of my fondest memories of growing up in Shanghai was eating watermelon slices on sweltering July evenings outside my home as a treat. On a recent trip, I ate watermelon in May, when temperatures had already surpassed 35 degrees Celsius (95 degrees Fahrenheit). In a nutshell, that summarizes the challenge facing Chinese authorities: The country is much hotter, for much longer, meaning residents of China — far wealthier than when I was young, and so more able to access power-hungry air conditioning — consume much more electricity.

On a macro level, demand has massively increased: economic growth, industrial expansion, and the impacts of climate change have hugely ramped up electricity usage. At the same time, supply is under threat, particularly in China’s southwest, which gets around 80% of its power generation from hydro. A study found that human-caused climate change has made droughts in China — and other parts of the northern hemisphere in 2022 — at least 20 times more likely.

KNOW MORE

The China Electricity Council, a state-supervised trade body, warned in June that the country’s hydropower supply is “facing challenges.” It said that rainfall for the region is forecast to be 20-50% less than normal years between June and August, which will likely impact power supply locally and to other provinces.

Although provincial governments have taken a series of steps to prepare for surging power demand, such as encouraging off-peak power use and managing water levels of reservoirs, experts anticipated seasonal power stress to persist.

Worries over power shortages spurred provinces across China to step up production of coal and coal power. There has also been a rush to approve new coal-fired power capacity in the country, a push that has drawn concern over its emissions and financial ramifications.

ROOM FOR DISAGREEMENT

Building more coal power plants won’t solve the problem, according to a new study, which argued that the “root cause” of the power shortages was China’s “rigid” power system management. The study, co-authored by a Hong Kong-based consultancy and a Helsinki-based think tank, said that Beijing should prioritize making its power system more flexible through methods such as reforming power pricing mechanisms and improving power-sharing arrangements between provinces.

THE VIEW FROM THE REST OF THE WORLD

Droughts and heat waves in China’s southwest could threaten the global supply chains of a range of goods from rice to metals. But the impact of any potential supply chain disruptions this year is likely to be “limited” and “short-lived,” said Cosimo Ries, a renewable energy analyst at the consultancy Trivium China, because Chinese policymakers “have taken active steps in preparation of energy shortages.”

— To read more, click here.

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One Good Text

Assaad Razzouk, author of the new book, Saving the Planet Without the Bullshit.

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Semafor Stat

The number of health workers on hand to treat cases of heat stroke, dehydration, and exhaustion in Mecca as an estimated 2.5 million Muslims descend on the Saudi city for the annual Hajj pilgrimage, which would be a record. Those taking part will brave temperatures of up to 45 C (113 F).

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Evidence

Canada’s wildfire season is now officially its worst on record, and smoke from the blazes has made its way across the Atlantic to Europe. Overall, the fires have burned across 7.5 million hectares, the most since Canadian authorities began keeping such records, and higher than the prior record of 7.1 million hectares, set in 1995. The scariest thing? Canada’s wildfire season is only about halfway through. According to the EU’s Copernicus Atmosphere Monitoring Service, the main volume of smoke from the fires hit Western Europe on Monday, and is expected to keep moving east until Thursday.

NASA Earth Observatory
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Hot Air
New Belgium bottling plant in Fort Collins. Greg Younger/WikimediaCommons

Few mundane technologies have captured headlines more in recent months than heat pumps, seen by Western governments as central to electrifying the world economy and helping eventually decarbonize it. So far, efforts have concentrated on replacing gas heating solutions at home. Now, a startup thinks heat pumps offer a solution for another issue.

AtmosZero this week unveiled a heat-pump boiler aimed at generating steam to 150 C to build the pressure needed for industrial applications. Its pilot project uses a 650-kilowatt boiler at a brewery in Colorado, targeting a problem that is seen as among the more vexing in the energy transition: electrifying industry.

“The only reason heat pumps have not delivered boiled water before is that no one has built heat pumps to boil water before,” AtmosZero’s Chief Executive Addison Stark told Canary Media. Though major heat-pump manufacturers do make industrial heat pumps, they have not targeted the market aggressively: In prior years, companies have relied on cheap gas, and few had explicit decarbonization goals. That is changing.

The brewery using the new heat pump is swapping out one of its four natural-gas-powered boilers, part of its own targets to be carbon neutral by 2030.

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