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Malaria Cases Are Spiking on a Warmer, Wetter World

The malaria-climate change connection, explained

Flooding in Pakistan.
Heatmap Illustration/Getty Images

The World Health Organization’s annual malaria report, released Thursday, for the first time includes a chapter “focused on the intersection between climate change and malaria” — and finds that climate change was a factor in a global increase in the disease. There were an estimated 249 million malaria cases in 2022, a five million increase over the previous year. Most of the new cases were concentrated in Pakistan, Ethiopia, Nigeria, Papua New Guinea, and Uganda.

The reasons for the surge seem to be manifold. Across sub-saharan Africa, the Anopheles mosquito, which transmits the disease, is expanding its range as the region warms. Flooding can also leave behind stagnant pools of standing water, which leads to a boom in mosquito numbers, as followed Pakistan’s catastrophic floods in 2022. And as people are displaced by such disasters, those without malarial immunity may settle in areas prone to the disease. In many cases they also live in tents or refugee centers, without simple yet crucial protections such as mosquito nets.

As is so often the case with climate change, the problems are at once immense — increasing heat in Subsaharan Africa and South Asia — and practical — not enough nets. “It is crucial to recognize the multitude of threats that impede our response efforts,” said Matshidiso Moeti, the World Health Organization’s Regional Director for Africa. “Climate variability poses a substantial risk, but we must also contend with challenges such as limited healthcare access, [and] ongoing conflicts and emergencies ... we need a concerted effort to tackle these diverse threats.”

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Sparks

Koloma Strikes New Hydrogen Exploration Deal in the Philippines

The deal, shared exclusively with Heatmap, is the startup’s third in the oil-importing country.

A Koloma worker.
Heatmap Illustration/Koloma, Getty Images

Hydrogen fuel comes in myriad forms. There’s green hydrogen, which is extracted from water molecules using zero-carbon electricity. There’s blue hydrogen, derived from methane and scrubbed clean by carbon capture. And then there’s white hydrogen. Otherwise known as natural or geologic hydrogen, this type of hydrogen comes directly from naturally occurring deposits in the earth, can accumulate in considerable quantities and concentrations, and is highly energy-efficient to extract compared to manufacturing pathways such as electrolyzers and steam methane reforming.

It’s a seductive promise, but finding deposits with enough hydrogen to make the economics of exploration work is difficult. That’s where Koloma comes in. The startup uses a bespoke subsurface data set, which its founders developed over 20-plus years, to flag the areas most likely to hold sufficient hydrogen, after which they can extract it for power and derivative fuels.

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Sparks

Data Centers Will Use Enough Electricity to Power Every U.S. Household by 2035

The latest forecast from BloombergNEF raises its estimate for AI electricity demand by 83%.

A data center and power lines.
Heatmap Illustration/Getty Images

Energy analysts at BloombergNEF predicted last year that U.S. data center electricity demand would reach 106 gigawatts within the next decade. In its latest outlook, released Tuesday, the group increased its forecast by 83%, to 194 gigawatts — enough to light up 150 million homes, or roughly every single household in the country today.

Even that may be a conservative estimate. If data center developers were to max out the total number of the high-powered chips used to train and operate AI models forecast to be delivered by 2035, electricity demand would reach 229 gigawatts.

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Microsoft Sustainability Chief Hounded by Protestors at Seattle Climate Week

“Microsoft, you can’t hide, we can see your dirty side!”

Melanie Nakagawa.
Heatmap Illustration/Getty Images, Katie Brigham

Protestors interrupted one of the final sessions of PNW Climate Week — a conference that brings together climate leaders across Washington, Oregon, and British Columbia — objecting to Microsoft’s rising carbon emissions from data centers and partnerships with oil and gas companies. The company’s Chief Sustainability Officer Melanie Nakagawa was having a one on one conversation with GeekWire climate reporter Lisa Stiffler at Seattle’s City Hall when protestors carrying signs reading “Microsoft’s AI pollutes” and other slogans began shouting from the audience.

I was there, having just moderated the prior panel on how to finance Washington’s clean energy ambitions. Early on there were some rumblings in the crowd from up front. “Climate leaders don’t build gas pipelines in Moses Lake,” was the first objection I heard clearly. It came shortly after Nakagawa kicked off the conversation by highlighting Microsoft’s partnership with sustainable aviation fuel startup Twelve, which recently opened its first commercial-scale SAF plant in Moses Lake, Washington. The tech giant has supported the project through a strategic investment from its Climate Innovation Fund, as well as an offtake agreement for the fuel that will help offset its emissions from employee travel.

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