pollution crisis
Yimin Feng
Youth riding share bikes along the UNESCO World Heritage Site West Lake in Hangzhou, China.
3 June 2019
Climate Change
Cars have replaced bicycles as the primary means of transport in many Chinese cities but, with air pollution a major problem for the country, the bike is making a comeback, thanks to digital technology, and some 21st Century thinking.
China was once considered to be the "Kingdom of the Bicycle,” with bikes dominating city streets across the country, but over the past four decades, China’s dramatic economic prosperity and urbanization has seen many people move to motor vehicles as their primary means of transport, contributing to a marked deterioration in air quality.
In Hangzhou, a city in eastern China that was once described by the Italian explorer Marco Polo as “the finest and most splendid city in the world,” air pollution has had a devastating effect. According to data backed by the World Health Organization (WHO), Hangzhou’s air pollution is well over WHO’s safe level.
However, in a bid to improve public health and the environment, the Hangzhou authorities have put a fresh emphasis on cycling, which, allied with digital technology, is helping to cut pollution: other cities are following their example.
Yimin Feng
Youth riding share bikes and hanging out by the UNESCO World Heritage Site West Lake in Hangzhou, China.
Over the past decade, the local government has been improving bike-friendly infrastructure, such as lanes and traffic signals created solely for cyclists, and has provided almost 86,000 public bikes. A smart card allows users to easily access all forms of public transport, from bikes to boats to buses.
“All together there have been 760 million rides, that’s almost half the population of China,” says Tao Xuejun, general manager of the Hangzhou Public Bicycle Service. “So far, more than 400 cities in China have adopted our project. Our dream is to promote our model across China and all over the world.”
As a result of these initiatives, according to Tao, cycling has become a popular choice for both local citizens and tourists, and the efforts of the Government-run company have been rewarded with international recognition, including the International Ashden Award for Sustainable Travel in 2017.
A mobile app that plants millions of trees
As well as leading the Chinese cycling resurgence, Hangzhou is home to an innovative way to encourage more sustainable lifestyles, with an app that is helping to stop desertification, cut air pollution and plant millions of new trees.
The “Ant Forest” mini-program, a Hangzhou-based project from giant Chinese payments and lifestyle app Alipay, incites users to make small, environmentally friendly decisions in their daily lives, such as cycling rather than driving to work, or recycling clothes.
“Each time I perform any carbon-reducing activities, I am rewarded with “green energy” points,” says Annie Hao, an associate at Ant Financial, the parent company of Alipay. “As I accumulate enough virtual points, a real tree is planted.” According to Ms. Hao, more than 13 million trees have been planted, thanks to the actions of the app’s 300 million users.
Beijing’s fight to see through the haze
Internationally, one of the best-known examples of harmful air pollution affecting quality of life in a city, is the Chinese capital, Beijing.
Beijing’s remarkable development over the last two decades saw a significant, and visible, rise in air pollution, due to a combination of factors, including coal-related pollutants; the growth of motor transport, especially logistics freight trucks; heavy industry; and dust from buildings and roads, according to a one of the main authors of a UN led report, A review of 20 Years’ Air Pollution Control in Beijing.
Fine particulates – tiny, invisible airborne particles – are largely responsible for deaths and illnesses from air pollution. The smallest, and deadliest, are called PM2.5 particles, which bypass the body’s defences and lodge in the lungs, bloodstream and brain. Business, public buildings and households account for around half of PM2.5 emissions.
Today, fine particulate pollution in Beijing’s air is still 7.3 times the safe level the WHO’s annual safe level, but the local and regional governments have managed to improve the situation in recent years.
By working together on a strategy to tackle the problem, by using the legal, economic and technological tools at its disposal, the concentration of fine particles in the air fell by one third, beating the target set by the State Council, China’s main administrative body.
“Beijing has achieved impressive air quality improvements in a short amount of time,” said Dechen Tsering, Director of UN Environment’s Asia Pacific Regional Office. “It is a good example of how a large city in a developing country can balance environmental protection and economic growth,” she stressed.
China is hosting the 2019 UN World Environment Day on June 05, with air pollution as the theme, The main events marking the day, will take place in Hangzhou.
https://news.un.org/en/story/2019/06/1039751
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