How Science Cafés Use Coffee to Teach About Air Quality

When dinner ends and the evening lights go on, a room full of curious citizens gathers not for small talk—but to learn. On the evening of the 16th, the ninth-floor room 901 of the Sinan Building at Shanghai’s Science Hall filled with the aroma of fresh coffee and the sound of engaged discussion as another session of the New Citizen Science Café got underway.

Since 2005, this unique series has hosted 168 public science lectures, attracting 30,000 attendees in total. The December 16 event focused on explaining the current state and future outlook of urban air quality—an issue on many minds.

What Is the New Citizen Science Café?

The New Citizen Science Café is a long-running public engagement series in Shanghai where experts break down complex scientific topics—like air pollution—in accessible language. Held in a casual atmosphere often accompanied by coffee, each event allows the public to ask questions and interact directly with scientists.

What Did the December 16 Talk Cover?

The evening’s lecture centered on “the present and future of urban air quality.” Speakers included Tang Xiaoyan, academician of the Chinese Academy of Engineering and professor at Peking University’s School of Environmental Science and Engineering, who explained the formation and health risks of PM2.5 in layman’s terms. Fu Qingyan, chief engineer of the Shanghai Environmental Monitoring Center, outlined recent efforts to reduce levels of nitrogen dioxide, sulfur dioxide, and PM10 in the city. Wu Qizhou, deputy director of the Shanghai Environmental Protection Bureau, discussed upcoming government measures, including a forthcoming Shanghai action plan aligned with China’s “Ten Measures for Air” , aiming for a 20% reduction in Shanghai’s PM2.5 concentration by 2017.

Why Do People Keep Coming Back?

For regular attendee Wang Rusong, a retired senior engineer from the Chinese Academy of Sciences, the lectures are indispensable. “After hearing the experts, I understand PM2.5 much better and feel more confident about the government’s efforts,” he said. He has attended nearly every session since 2005, often bringing detailed questions. Even younger attendees like 9-year-old Shen Junheng—who started coming at age 3—find value in the sessions. Shen has listened to talks on everything from mammoths to 3D printing and the hottest summers on record, always taking careful notes. His father, Shen Ruoqing, appreciates the informal yet informative tone: “It’s like talking with family, but you’re learning from top scientists. We hope these events continue for years to come.”

How Does Coffee Fit In?

Though the focus is on science—not coffee—the relaxed atmosphere often includes the aroma and presence of freshly brewed coffee, helping create a welcoming environment where curious minds of all ages can engage with cutting-edge research without the formality of a lecture hall.

Frequently Asked Questions

What is PM2.5 and why is it harmful?

PM2.5 refers to airborne particulate matter with a diameter of 2.5 micrometers or smaller. These fine particles can penetrate deep into the lungs and bloodstream, posing significant health risks. The December 16 lecture at the New Citizen Science Café explained how PM2.5 forms and why reducing it is critical for public health.

How many people have attended the New Citizen Science Café?

Since its launch in 2005, the New Citizen Science Café has hosted 168 lectures and welcomed 30,000 attendees in total, making it a significant platform for public science education in Shanghai.

What pollutants were discussed at the December 16 event?

The lecture covered nitrogen dioxide, sulfur dioxide, PM10, and PM2.5, with a strong focus on PM2.5. Experts detailed Shanghai’s progress in reducing these pollutants and announced a new action plan targeting a 20% reduction in PM2.5 by 2017.

Who were the speakers at the December 16 science café?

The speakers included Tang Xiaoyan (academician and environmental science professor), Fu Qingyan (Shanghai Environmental Monitoring Center chief engineer), and Wu Qizhou (Shanghai Environmental Protection Bureau deputy director), each addressing different aspects of air quality and pollution control.

Why do people bring their children to the science café?

Children like 9-year-old Shen Junheng attend because the lectures cover fascinating topics (e.g., mammoths, 3D printing) in an engaging way. Parents appreciate that their kids can learn while also experiencing informal discussions with leading scientists in a relaxed setting.