We’ve updated our Privacy Policy to make it clearer how we use your personal data.

News Sep 30, 2020
| Original story from Carnegie Institution for Science

The researchers’ models indicate that China’s efforts to combat aerosol pollution between 2006 and 2017 resulted in modest local warming and more widespread warming throughout the northern latitudes. Credit: Yixuan Zheng, Ken Caldeira, Dan Tong,Steven Davis, and Qiang Zhang.

A 10-year effort by China to improve air quality and reduce pollution-related health risks has caused warming in areas across the northern hemisphere, according to new work published in Environmental Research Letters.Aerosols are tiny particles that are spewed into the atmosphere by human activities, such as burning coal and wood, or by geological phenomena, like volcanos. Their negative effects on air quality can damage human health and agricultural productivity.

Similar to how the aerosols emitted in a volcanic eruption can cause global temperatures to drop, some aerosols from human activity also have a cooling effect on the climate. Unlike greenhouse gases, which induce global warming by trapping heat in the atmosphere, aerosol particles can cause sunlight to be reflected away from the planet either directly or by interacting with clouds.

“This means that some of the effects of global warming are being masked by aerosol pollution,” explained lead author, Carnegie’s Yixuan Zheng.

Between 2006 and 2017, the Chinese government implemented clean-air policies to reduce the public health risks of aerosol pollutants like sulfate, a cooling agent. These efforts have possibly saved as many as half a million lives a year.

Zheng, along with Carnegie colleague Ken Caldeira, UC Irvine’s Dan Tong and Steven Davis, and Qiang Zhang of Tsinghua University, set out to investigate how these aerosol reductions have affected the global climate.They applied a sophisticated model based on atmospheric and oceanic systems over a 100-year period, which revealed that China’s pollution-reduction policies might have unmasked about 0.1 degrees Celsius (0.2 degrees Fahrenheit) of greenhouse-gas-induced warming throughout the northern hemisphere—not just in China itself.

“The health risks associated with particulate pollution are very serious and mitigation efforts are unquestionably a good thing,” Caldeira said. “But it’s also important to understand how ongoing and future efforts to improve air quality will create additional challenges in the international fight against climate change.”ReferenceZheng Y, Zhang Q, Tong D, Davis SJ, Caldeira K. Climate effects of China’s efforts to improve its air quality. Environ Res Lett. 2020;15(10):104052. doi:10.1088/1748-9326/ab9e21This article has been republished from the following materials. Note: material may have been edited for length and content. For further information, please contact the cited source.

How Aging Impacts the Genome

In a paper published in Cell Reports, scientists led by Johan Auwerx at EPFL asked a simple question: how do the tissues of aging mice differ from those of mice that are mere adults?

A Step Closer to Hydrogen Energy

Scientists have found a way to hydrogenate thin metallic glass layers at room temperature. This technology can considerably expand the range of cheap, energy-efficient, and high-performance materials and methods that can be used in the field of hydrogen energy.

Microbial Omics Could Inform Climate Change Models

Researchers are tackling a problem that has challenged scientists for more than a decade. The findings from which may have important implications for understanding and predicting the ecological consequences of climate warming.

Like what you just read? You can find similar content on the communities below.

To personalize the content you see on Technology Networks homepage, Log In or Subscribe for Free

Webinar

Source: https://www.technologynetworks.com/applied-sciences/news/are-chinas-pollution-reduction-efforts-warming-the-rest-of-the-planet-340997

Climate change, Air pollution, Atmosphere of Earth, Greenhouse gas, Ken Caldeira, China

World news – US – Are China’s Pollution Reduction Efforts Warming the Rest of the Planet?

Building on its expertise in the areas of digital, technologies and processes , CSS Engineering you in your most ambitious transformation projects and helps you bring out new ideas, new offers, new modes of collaboration, new ways of producing and selling.

CSS Engineering is involved in projects each customer as if it were his own. We believe a consulting company should be more than an advisor. We put ourselves in the place of our customers, to align we incentives to their goals, and collaborate to unlock the full potential their business. This establishes deep relationships and enjoyable.

Our services:

  1. Create professional websites
  2. Hosting high performance and unlimited
  3. Sale and video surveillance cameras installation
  4. Sale and Installation of security system and alarm
  5. E-Marketing

All our achievements here https://www.css-engineering.com/en/works/

LEAVE A REPLY

Please enter your comment!
Please enter your name here