The Future of Hydropower Looks Dim as Heat and Drought Intensify
But climate change also promises greater frequencies and intensities of heat and drought. So more than half of the world’s hydropower and thermoelectric generating plants could find their capacity reduced.
Michelle van Vliet, an environmental scientist at Wageningen University in the Netherlands, and colleagues from the International Institute of Applied Systems Analysis in Austria report in Nature Climate Change that they modeled the potential performance in the decades ahead of 24,515 hydropower plants and 1,427 nuclear, fossil-fueled, biomass-fueled and geothermal power stations.
Thermoelectric turbines—which generate power directly from heat, and rely on water as a coolant—and hydropower plants currently generate 98 percent of the planet’s electricity. But global water consumption for power generation is expected to double in the next 40 years as economies develop and the population continues to grow.
The scientists found that reductions in stream and river flow and the rise in levels of water temperature could reduce the generating capacity of up to 86 percent of the thermoelectric plants and up to 74% of the hydropower plants in their study.
This means that power from hydro stations could fall by 3.6 percent in the 2050s and 6.1 percent in the 2080s, because of reduced stream flow. And by the 2050s, the monthly capacity of most of the thermoelectric power plants could drop by 50 percent.
Dr van Vliet said: “In particular, the United States, southern South America, southern Africa, central and southern Europe, Southeast Asia and southern Australia are vulnerable regions, because declines in mean annual stream flow are projected, combined with strong increases in water temperature under changing climate.
“This reduces the potential for both hydropower and thermoelectric power generation in these regions.”
Forewarned is forearmed: there are steps that the energy industry could take to make generation more efficient and to adapt to a world in which water supply might be constrained, at least for part of the year.
But the report suggests that the planning for a different tomorrow should start now. “In order to sustain water and energy security in the next decades, the electricity industry will need to increase their focus on climate change adaptation, in addition to mitigation,” Dr van Vliet said.
Keywan Riahi, energy programme director at IIASA and a co-author of the report, said: “This is the first study of its kind to examine the linkages between climate change, water resources and electricity production on a global scale.
“We clearly show that power plants are not only causing climate change, but they might also be affected in major ways by climate.”
YOU MIGHT ALSO LIKE
- Thom Yorke of Radiohead Releases Song With Greenpeace to Help ... ›
- Patti Smith, Thom Yorke, Flea and More Featured on Just Released ... ›
- Musicians and Activists Unite at 'Pathway to Paris' - EcoWatch ›
EcoWatch Daily Newsletter
A national park in Thailand has come up with an innovative way to make sure guests clean up their own trash: mail it back to them.
- Supermarkets in Thailand and Vietnam Swap Plastic Packaging for ... ›
- Malaysia Sends Plastic Waste Back to 13 Wealthy Countries, Says It ... ›
- Thailand Begins the New Year With Plastic Bag Ban - EcoWatch ›
- Coronavirus Worsens Thailand's Plastic Waste Crisis - EcoWatch ›
- Marium, Thailand's Beloved Baby Dugong, Is the Latest Victim of ... ›
By Ilana Cohen
Four years ago, Jacob Abel cast his first presidential vote for Donald Trump. As a young conservative from Concord, North Carolina, the choice felt natural.
But this November, he plans to cast a "protest vote" for a write-in candidate or abstain from casting a ballot for president. A determining factor in his 180-degree turn? Climate change.
Fractures Among Young Climate Conservatives<p>While young conservatives have united around the urgency of climate change, they remain divided over how to bring their concerns to the ballot box. Some embrace right-wing <a href="https://www.washingtonpost.com/politics/biden-attacks-republican-convention/2020/08/24/434e5b46-e66d-11ea-970a-64c73a1c2392_story.html" target="_blank">attacks</a> painting Biden as a "tool of the left" and find his climate agenda "radical." Others can't find a way to justify voting for Trump, even if it means breaking with their party.</p><p>Patrick Mann from Orange County, California, voted for Trump in 2016. But today, he's leading Aggies for Joe at Texas A&M University and is co-founder of Texas Students for Biden. </p><p>Mann grew up watching wildfires ravage his home state, nearly forcing his family to evacuate in 2017. The GOP is failing to "meet the moment" for climate action, Mann said. He's hoping Biden will deliver on a promise to "<a href="https://www.desmoinesregister.com/story/opinion/columnists/caucus/2020/01/06/joe-biden-democrat-president-iowa-caucus-restore-soul-our-nation/2806422001/" target="_blank">restore the soul of our nation</a>." </p><p>Taylor Walker from Pensacola, Florida, is also determined to make her voice heard on climate, including by casting her first-ever vote for president—but not for Biden.</p>
A False Equivalency<p>Young climate conservatives may fear climate denial and delayed climate action, but more than that, they fear the growing political momentum around the Green New Deal, the massive spending it entails and <a href="https://joebiden.com/climate-plan/" target="_blank">Biden's citing of it</a> as a "crucial framing for meeting the climate challenges we face."</p><p>Many don't want to split with their party to support a Democrat whose <a href="https://www.npr.org/2019/09/03/757220130/joe-biden-on-bipartisanship-gun-control-and-regrets-over-inaction-after-a-traged" target="_blank">allegedly bipartisan intentions</a> they doubt. If stymieing what they consider a radical green agenda means re-electing a climate change denying president, so be it. </p><p>"I'm scared of climate change, but I'm also scared of the Green New Deal and what it means for America," said Ben Mutolo, a republicEN spokesperson and junior at SUNY College of Environmental Science and Forestry. </p><p>Mutolo felt encouraged by former Ohio Governor John Kasich's <a href="https://www.rollcall.com/2020/08/17/kasich-speech-to-democratic-convention-follows-years-of-building-conservative-credentials/" target="_blank" rel="noopener noreferrer">appearance</a> at the Democratic National Convention, but he still struggles to see himself voting for Biden. Though the candidate paints himself as a <a href="https://www.latimes.com/politics/story/2020-08-12/harris-biden-different-generation-similar-political-instinct" target="_blank" rel="noopener noreferrer">centrist,</a> Mutolo believes he's "cozying up to the ultra-progressive left." </p><p>Mutolo, who wants to see market-based climate solutions like a carbon tax, feels torn between a candidate whose climate plan relies on taking an "<a href="https://joebiden.com/environmental-justice-plan/#" target="_blank" rel="noopener noreferrer">All-of-Government approach</a>," and one with no efforts to reign in global warming at all. <span></span></p><p>Leiserowitz said he appreciated how a conservative might feel Biden's climate plan "doesn't jive with their limited government, free-market approach."</p><p>But he sees a strong distinction between voting for a presidential candidate with a <a href="https://www.nytimes.com/2020/07/14/us/politics/biden-climate-plan.html" target="_blank">$2 trillion climate plan</a> that includes large renewable energy investments, which have <a href="https://climatecommunication.yale.edu/publications/politics-global-warming-april-2020/" target="_blank" rel="noopener noreferrer">bipartisan support</a>, and a candidate trying "to take the country in the opposite direction, towards more fossil fuels."</p>
- 7 Republicans Joined Senate Democrats in Vote to Fight Climate ... ›
- Climate Change Acknowledged by Increasing Number of ... ›
The World Health Organization (WHO) announced Monday that 64 high-income nations have joined an effort to distribute a COVID-19 vaccine fairly, prioritizing the most vulnerable citizens, as Science reported. The program is called the COVID-19 Vaccines Global Access Facility, or Covax, and it is a joint effort led by the WHO, the Coalition for Epidemic Preparedness Innovations (CEPI) and Gavi, the Vaccine Alliance.
- Trump Denies CDC Director's 2021 Timeline for Coronavirus Vaccine ›
- CDC Tells States to Prepare for a Vaccine Before November Election ›
- Fauci Warns Pre-Pandemic Normalcy Not Likely Until Late 2021 ... ›
By Gloria Oladipo
In the face of dangerous heat waves this summer, Americans have taken shelter in air conditioned cooling centers. Normally, that would be a wise choice, but during a pandemic, indoor shelters present new risks. The same air conditioning systems that keep us cool recirculate air around us, potentially spreading the coronavirus.