Houston Chronicle

Gates’ new book reaches for climate’s high-hanging fruit

- By Peter Coy

“Do the Hard Stuff Too” is Point #6 in Chapter 10 of Bill Gates’s new book, “How to Avoid a Climate Disaster: The Solutions We Have and the Breakthrou­ghs We Need.”

Gates elaborated on that point in a recent video talk hosted by the Economic Club of New York. “To get to zero (emissions), you can’t leave the hard categories alone,” the co-founder of Microsoft Corp., now a full-time philanthro­pist, told the online audience. (He appeared with former Treasury Secretary Henry Paulson.) “We’ve put all the effort into the easy categories of cars and power generation,” Gates said. “In the hard categories, the work has barely, barely begun. You don’t get success unless you cover them all.”

“All” is the key point. Businesspe­ople are accustomed to picking the low-hanging fruit first—knocking off the projects with the lowest costs and highest payoffs before tackling the harder stuff. But that won’t work for climate change, Gates said. To overwork the fruit metaphor, the climate can’t be saved unless all the fruit is picked, including the stuff on the very highest branches. And the effort has to start now.

Example: There’s been a lot of progress on solar panels and wind turbines, which is great. Renewable energy has become what Gates calls an “easy” category. But they produce power intermitte­ntly, and there’s been far less progress on technologi­es for storing the energy they produce—not just for a few hours, but potentiall­y for an entire season.

The same goes for transporta­tion. Batteries are wonderful for passenger vehicles, but there will never be battery-powered airliners because the batteries would weigh too much and take up too much room. So for the foreseeabl­e future, the net-zero solution for airlines and some other forms of transporta­tion will be alternativ­e liquid fuels that are made from carbon that was already in the atmosphere. While those don’t add to carbon in the atmosphere, they are prohibitiv­ely expensive and there hasn’t been enough research on bringing down their cost, Gates writes.

Other technologi­es that require research include zerocarbon steel and cement, meat and dairy made from plants or cells, capture of carbon from the air, safer nuclear power plants, nuclear fusion and coolants that don’t contain fluorinate­d greenhouse gases, he writes.

It’s tempting to focus on ways to reduce greenhouse gas emissions by 2030. But “making reductions by 2030 the wrong way might actually prevent us from ever getting to zero,” Gates writes. An example of that would be replacing power plants that burn coal with power plants that burn natural gas, which is cleaner but still puts out greenhouse gases.

A better strategy, Gates writes, is to focus investment­s on two priorities: installing as much zero-carbon generation as possible, and electrifyi­ng as many processes and products as possible in anticipati­on of the day when all electricit­y will be carbon-free.

“If we think the only thing that matters is reducing emissions by 2030, then this approach would be a failure, since it might deliver only marginal reductions within a decade,” Gates writes. “But we’d be setting ourselves up for longterm success. With every breakthrou­gh in generating, storing, and delivering clean electricit­y, we would march closer and closer to zero.”

In short: Reach for the highhangin­g fruit.

The cover of Bill Gates’ new book, “How to Avoid Climate Disaster: The Solutions We Have and the Breakthrou­ghs We Need.”

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 ?? Elaine Thompson / Associated Press ?? Bill Gates writes that solely striving toward net-zero goals by 2030 is setting us up for “failure.”
Elaine Thompson / Associated Press Bill Gates writes that solely striving toward net-zero goals by 2030 is setting us up for “failure.”

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