https://www.rt.com/news/514479-pandemic-lockdowns-raised-global-temperatures/
I guess we should be glad China is building lots of new coal-fired power plants.
https://www.wired.com/story/china-is-still-building-an-insane-number-of-new-coal-plants/
‘Pollution cools the planet’: Pandemic-induced lockdowns RAISED global temperatures in 2020
3 Feb, 2021 14:26
Get short URL
Illustration: © Pexels
Follow RT on
- 27
Contrary to many breathless headlines published throughout the pandemic extolling the benefits of lockdowns for the environment, the planet was actually warmer because of them, a new paper has found.
According to the latest research led by the US National Center for Atmospheric Research (NCAR), the emission of airborne particles, or aerosols, that block incoming sunlight and send it back out into space, dropped significantly in industrialized nations around the globe, spurring a small, but significant rise in temperatures.
Emissions of aerosols dropped during the springtime lockdowns of 2020, in sync with the precipitous drop in major industrial activity across the globe, allowing more of the sun's light to reach the Earth, raising temperatures in industrialized nations like the United States and Russia
“There was a big decline in emissions from the most polluting industries, and that had immediate, short-term effects on temperatures,” said NCAR scientist Andrew Gettelman, the study's lead author.
“Pollution cools the planet, so it makes sense that pollution reductions would warm the planet.”
ALSO ON RT.COMSacrificing freedom for the environment? German MP suggests restrictions ‘similar’ to Covid-19 lockdowns to fight climate change
In certain areas, temperatures were between 0.2 and 0.5 degrees Fahrenheit (0.1 and 0.3 degrees Celsius) warmer than expected for that time of year and given prevailing weather conditions.
Warming reached about 0.7 degrees Fahrenheit (0.37 C) in many parts of the United States and Russia, as aerosols tend to brighten clouds and reflect more of the sun's rays back out into space while carbon dioxide and other greenhouse gases insulate the planet and trap the sun's energy closer to the surface.
Gettelman stressed that, despite short-term warming in certain areas of the planet, the long-term effect of the pandemic and ensuing lockdowns would slightly slow the pace of climate change, due to the more gradual impact of reduced CO2 emissions in the atmosphere.
Gettelman and his co-authors from the universities of Oxford, Imperial College, and Leeds ran simulations using two of the world's leading climate models, the NCAR-based Community Earth System Model and a model known as ECHAM-HAMMOZ, adjusting for aerosol levels during the lockdowns of 2020.
The warming effect visible in their models was strongest in the mid and upper latitudes of the Northern Hemisphere, mixed near the equator and mostly negligible in the southern hemisphere, in line with the distribution of aerosol-producing, industrialized nations.
Lest anyone get too carried away by the research, Gettelman was quick to caution that simply pumping more aerosols into the atmosphere to stave off climate change would be a catastrophically bad idea.
“Aerosol emissions have major health ramifications,” he said. “Saying we should pollute is not practical.”
I guess we should be glad China is building lots of new coal-fired power plants.
https://www.wired.com/story/china-is-still-building-an-insane-number-of-new-coal-plants/
China Is Still Building an Insane Number of New Coal Plants
While the rest of the world turns away from the fossil fuel, China is investing big in coal-powered electricity.
PHOTOGRAPH: PAUL SOUDERS/GETTY IMAGES
struggling to hit their emission reduction goals, the United States confirmed its intention to withdraw from the agreement, and tech giants are cozying up to the fossil fuel industry and climate change deniers. Meanwhile, entire cities are sinking into the ocean, wildfires are ravaging the West Coast of the US, glaciers are melting, and the ocean is dying. The writing is on the wall: If something doesn’t change soon, our goose is cooked.
To be sure, some things are changing. This year, coal-generated electricity is expected to see its biggest global step-down on record. This is good news considering the UN estimates the world needs to reduce its coal-fired electricity by two-thirds in the next decade to meet our climate goals. But as detailed in a new report from the Global Energy Monitor, an NGO tracking fossil fuel assets, China seems to be ignoring the memo that coal is canceled.
“For awhile it looked like China was moving away from coal toward clean energy, but coal is still a pretty big part of the country’s economy,” says Christine Shearer, the coal program director at the Global Energy Monitor. “We don’t have a lot of time in terms of emission reduction, but clean energy development is happening alongside coal plant construction rather than displacing it.”
To meet its climate goal as stipulated in the Paris agreement, China will need to reduce its coal power capacity by 40 percent over the next decade, according to Global Energy Monitor’s analysis. At present, this seems unrealistic. In addition to roughly 1,000 gigawatts of existing coal capacity, China has 121 gigawatts of coal plants under construction, which is more than is being built in the rest of the world combined. But here’s the weird thing—more than half the time, China’s coal plants are just sitting around collecting dust. If China already has more coal power than it needs, why does it keep building new plants?
The answer can be found in energy regulations crafted during the Chinese coal boom of the 1980s, says Lee Branstetter, an economist at Carnegie Mellon University. As China opened itself to market reforms, it accelerated economic development, and its energy supply simply couldn’t keep up. Coal is an abundant natural resource in China, so the government adopted several energy policies to encourage the construction of coal plants. As a result, the plants proliferated as fast as the government could process them.
News of the future, now.Get WIRED for as low as $5.Subscribe Now
But that, says Branstetter, is the other key to understanding how China came to build more power plants than it needed. When the central government was the one approving each new coal plant, it could ensure that supply approximated demand. That all changed in late 2014 when China’s federal government allowed provincial governments to approve power plants on their own. The idea was to expedite the years-long approval process for new power plants while also boosting China’s economy by meeting its projected energy needs.
“On the surface it sounds great: You’re decentralizing the permit process and making it simpler,” Branstetter says. “But unfortunately for China, this opened the floodgates and resulted in an explosion of coal power plant construction.”
Local governments were under enormous political pressure to increase the economic productivity in their region and saw new coal plants as a great shortcut. China’s energy policies from the '80s and '90s basically guaranteed new coal plants would turn a profit, so local officials were incentivized to approve as many new coal plants in their region as possible—and that’s exactly what they did. The following year, the capacity of newly approved coal plants in China tripled.
It didn’t take the federal government long to realize its mistake. In 2016, it rolled back the rules that threw coal plant construction into overdrive and delayed or canceled dozens of approved plants. But as Shearer and her colleagues at Global Energy Monitor found by analyzing permits and satellite images, many plants are still under active construction today.
Even if all those power plants end up on China’s grid, Branstetter says there’s a good chance they won’t be used to their full potential. “China has a long history of building energy capacity that is not fully utilized,” says Branstetter. “From a Western perspective this seems wasteful or inefficient, but the possibility exists that coal plants will be built and not utilized on the grid.”
Indeed, coal-powered electricity generation in China has flatlined, despite the explosive growth in the number of coal plants. According to Daisy Ren, a doctoral student at Carnegie Mellon who studies the economics of energy policy, China’s coal use is expected to peak around 2020. “We should be concerned about whether China is burning more coal in the future, but increasing its coal capacity is not equivalent to using that much coal,” Ren says. Still, if China has any hope of meeting its climate goals, it needs to be retiring coal plants, not opening new ones.
In 2021, China will adopt its 14th five-year-plan, which will provide a roadmap for the country’s political and economic priorities through 2025. China’s state-run National Center for Climate Change Strategy has advocated for the next five-year-plan to include hard caps on carbon emissions. Premier Li Keqiang, director of the National Energy Commission, which determines China’s energy policy, has a different idea. Recently, he spoke of the need to “promote the safe and green mining of coal and the clean and efficient development of coal power.”
Although China continues to be a world leader in the deployment of renewable energy resources, its continuing reliance on coal also means its carbon footprint tops the charts. The path forward is clear, but whether Chinese officials can strike a balance between economic imperatives and solutions to a mounting climate emergency is not.
