InternationalRelations

Operators of hyperscale data centers, those with more than 5,000 servers, are migrating to places where water is plentiful, such as Norway, but also to drought-prone places like Italy and Spain where energy is cheaper—and where extreme heat is becoming the norm.

A survey conducted last year by the Uptime Institute, a consulting firm, found that only 39% of data centers even tracked their water use, a 12 percentage-point drop from 2021. Tech companies in the past have refused to disclose information about individual centers’ energy and water consumption, claiming that such data was a trade secret.

Over the last couple of years, Google, Meta and Microsoft have started publishing their total water use across their operations, but they don’t break the number down by business unit nor use standardized metrics. Bluefield Research has estimated data centers use more than a billion liters of water per day, including water used in energy generation.

Operators often use shell companies to apply for planning permissions, and a data center can look like any large warehouse or factory from the outside.

Arman Shehabi, a researcher at the Lawrence Berkeley National Laboratory in California best known for a landmark paper on energy consumption at data centers, thinks the facilities could contribute to scarcity as droughts become longer and more intense. Part of the problem, he says, is that data center operators “are generally the last ones to the table to ask,” straining the system by asking for access to scarce water after agricultural interests and local communities have already come up with a plan. “Everybody is going to feel that,” he says.

Companies say data centers are getting more energy-efficient, but the increase in overall demand for computing power is outpacing such gains.

The specialized chips required for AI—broadly known as accelerators—emit so much more heat than general-purpose chips do that data center operators are having to rethink their cooling systems entirely

over time data centers will need to radically change the way they dissipate heat. The gold standard, he says, is a process called immersive cooling, in which servers are bathed in a special fluid that transfers heat from the chips. For now, operators are likely to opt for a hybrid model, wherein a high-performance section of the data center will be liquid-cooled while the rest will continue to use air conditioning

Amazon Web Services, Google and Microsoft have all made water stewardship pledges, promising to use more nonpotable and recycled water and to replenish more water than they consume operationally by 2030. This is the equivalent to offsetting carbon by planting trees—something that looks good on paper but may not directly benefit the communities affected by data centers, because water may be replenished only in places where it’s easy to do so.

Niger has been a base of international military operations for years as Islamic extremists have greatly expanded their reach in the Sahel. Those include Boko Haram in neighboring Nigeria and Chad, but the more immediate threat comes from growing activity in Niger’s border areas with Mali and Burkina Faso from the Islamic State in the Greater Sahara and the al-Qaida affiliate Jama’at Nusrat al-Islam wal-Muslimin, known as JNIM.

Mali’s military junta last month ordered the 15,000-strong United Nations peacekeeping mission to leave, claiming they had failed in their mission. However, Wagner forces remain there, accused by watchdogs of human rights atrocities.

The United States in early 2021 said it had provided Niger with more than $500 million in military assistance and training programs since 2012, one of the largest such support programs in sub-Saharan Africa. The European Union earlier this year launched a 27 million-euro ($30 million) military training mission in Niger.

The U.S. has operated drones out of a base it constructed in Niger’s remote north as part of counterterrorism efforts in the vast Sahel. The fate of that base and other U.S. operational sites in the country after this week’s coup isn’t immediately known.

West Africa’s Sahel region has become one of the world’s deadliest regions for extremism. West Africa recorded over 1,800 extremist attacks in the first six months of this year, resulting in nearly 4,600 deaths, a top regional official told the United Nations Security Council this week.

Niger is one of the world’s poorest countries, struggling with climate change along with migrants from across West Africa trying to make their way across the Sahara en route toward Europe. It has received millions of euros of investment from the EU in its efforts to curb migration via smugglers.

Only half of 1 percent of the world’s water supply is fresh water in liquid form. The rest is saltwater or frozen into glaciers.

its biggest use, globally, is for food production

“It’s much more useful and easier to live with if the water all comes regularly and without these extremes. But more and more, that’s not the case.”

If surface water is in short supply, people often turn to groundwater, which can be rapidly depleted. In India, nearly 60 percent of the population makes a living from farming. For decades, the government supported farmers by subsidizing the cost of diesel to run water pumps and tractors and by purchasing wheat and rice at an artificially high price. Water demand to irrigate rice and wheat fields is contributing to groundwater depletion in the northern region of Punjab.

“More people demand more water, but also each person demands more water as they get wealthier,” Iceland said. “So as you get wealthier, you move from a more grain and vegetable-oriented diet to a more meat-oriented diet.”

Growing and feeding a cow to create one pound of beef requires as much as 1,800 gallons of water, by some estimates. Calorie-for-calorie, that’s almost eight times as much water as vegetables and 20 times as much water as cereals like wheat and corn.

Water-intensive crops like sugar cane and cotton could also drive demand in sub-Saharan Africa, where water use is expected to double over the next 20 years. Many areas still lack infrastructure to reliably deliver water for irrigation. As those pipelines are built, more farmers will have access to water, which will further strain surface water supplies. Inefficient water use and unsustainable management could lower gross domestic product in the region by 6 percent, according to WRI.

One Saudi company is growing alfalfa in the Arizona desert, pulling from the area’s groundwater supplies. That alfalfa is then shipped overseas to feed cattle in Saudi Arabia, where industrial-scale farming of forage crops has been banned to conserve the nation’s water.

Water is also integral to mining lithium and other minerals used in electric vehicle batteries and renewable energy infrastructure. These critical minerals are often found in arid places like Chile, which is already water-stressed and is projected to use 20 percent more water by 2050, according to WRI.

Since farming accounts for the most water use globally, experts say that micro-sprinklers and drip irrigation instead of flood irrigation are an important solution.

reducing meat and dairy consumption can decrease individual water footprints. Reducing food waste could also help reduce water use. In the United States, more than a third of food ends up in the landfill. The biggest single contributor to food waste is throwing away food at home.