CALUE Database
News | media coverage of our work
Global Carbon Emissions Continue To Rise
NPR "All Things Considered" | September 2, 2019
"The point of all of this work is that there's a lot of inertia in the problem itself. Climate change is something that is going to take decades to repair. So even if we figured out a miracle energy technology tomorrow, we've got a lot of stuff out there that we have to worry about retiring and getting rid of before we solve this problem."
Tong et al. 2019
Beer Shortage Due to Climate Change? Yes, It Could Happen
Good Morning America | October 16, 2018
"This is not a drill: As climate change worsens, there could be a beer shortage.

A study published Monday that looked at beer's growing popularity and a potential decline in barley harvests linked to climate change showed prices for beer could double, or even triple, in countries including the U.S."
Xie et al. 2018
Climate Change's Effect on Beer Production Worldwide
The Daily Show with Trevor Noah | October 16, 2018
"Climate change. Sometimes it feels so hopeless that all you want to do is get drunk and forget about it. Well, sadly, that won't be an option--because of cliamte change. ... Oh man, they're trying so hard to get people to care about climate change. Right? No, because if you tell Americans that in 10 years the Marshall Islands will be underwater, no one cares, but tell them Corona will cost more, now they're marrching in the streets! C'mon!"
Xie et al. 2018
Heat and Drought Could Threaten World Beer Supply
New York Times | October 15, 2018
"In a report in Nature Plants, researchers in China, Britain and the United States say that by the end of the century, drought and heat could hurt barley crops enough to cause intense pain to beer drinkers. Imagine a worst case of a 20 percent drop in supply in the United States, or a doubling of prices per bottle in Ireland. That’s no abstract end of civilization talk; that’s an empty display case at the Stop ’N Go.
Xie et al. 2018
Global warming to leave us crying in our costlier beer
AP | October 15, 2018
"Increasing bouts of extreme heat waves and drought will hurt production of barley, a key beer ingredient, in the future. That means beer prices on average would double, even adjusting for inflation, according to the study in Monday’s journal Nature Plants. Study co-author Steve Davis of the University of California, Irvine, said the beer research was partly done to drive home the not-that-palatable message that climate change is messing with all sorts of aspects of our daily lives."
Xie et al. 2018
What would it take to decarbonise the global economy?
The Economist | November 29, 2018
"Steven Davis of the University of California, Irvine, has led a team of researchers in mapping out what a net-zero-emissions energy system would look like, using a set of already available technologies that he describes as “fairly simple and finite”. Besides electricity and batteries, they include hydrogen and ammonia, biofuels, synthetic fuels, ccs, and removal of carbon from the atmosphere."
Davis et al. 2018
Trouble Brewing? Climate Change Closes In on Beer Drinkers
Scientific American | October 15, 2018
"Even if you didn’t notice beer price fluctuations following those years—2014 and 2017—consumers probably will in the near future. Climate change will make extreme events like prolonged droughts and heat waves more severe and frequent, says Steven Davis, an earth systems scientist at the University of California, Irvine. That, in turn, could make beer (the vast majority of which is brewed with barley) dizzyingly expensive, according to study results Davis and his research team published Monday in Nature Plants."
Xie et al. 2018
We have no idea how to eliminate 25% of energy emissions
MIT Tech Review | June 28, 2018
"A new paper in Science offers a stark reminder that there are still huge parts of the global energy system where we simply don’t have affordable ways of halting greenhouse-gas emissions. Air travel, long-distance transportation and shipping, steel and cement manufacturing, and remaining parts of the power sector account for 27 percent of global emissions from the energy and industrial sectors. And the authors say we need much more research, innovation, and strategic coordination to clean up these sources."
Davis et al. 2018
The US Could Supply 80% of Its Energy with Wind and Solar
VICE | February 27, 2018
"A new report in Energy and Environmental Science shows that a conversion to an 80% solar and wind-based energy system is possible..[with] advancement in energy storage technologies or hundreds of billions of dollars invested in renewable energy infrastructure. 'The sun sets and the wind doesn’t always blow,' Steven Davis, an associate professor of Earth system science at UC Irvine, said in a statement. 'If we want a reliable power system based on these resources, how do we deal with their daily and seasonal changes?''"
Shaner et al. 2018
Airborne particles cause more than 3m early deaths a year
The Economist | April 1, 2017
"[J]ust under an eighth [of 3 million premature deaths caused by PM2.5] were associated with pollutants released in a part of the world different from that in which the death occurred, thanks to transport of such particles from place to place by the wind. Almost twice as many (22% of the total) were a consequence of goods and services that were produced in one region (often poor) and then exported for consumption in another (often rich, and with more finicky environmental standards for its own manufacturers)."
Zhang et al. 2017