China: ”World’s Largest Air Purifier” Battles Smog

Scientists at China’s Institute of Earth Environment have constructed what they say is the world’s largest air purifier in the northern city of Xian.The experimental smog-sucking tower stands at over 100 metres tall and is designed to improve air quality in the city, where standards regularly fall short of expectations set by the World Health Organization, according to an article from World Economic Forum.

Lead researcher Cao Junji says the tower is capable of producing more than 10 million cubic metres of clean air per day, adding that on severely polluted days smog is reduced to “moderate levels”. More smog towers are being produced for parks and playgrounds across China’s cities.

And last year the country introduced anti-pollution measures across 28 cities. The plan, which includes curbing production in heavy industries, is designed to cut PM2.5 concentrations by at least 15% year-on-year.

China has also increased its investment in clean energy, from $7.5 billion in 2005 to more than $101 billion a decade later. This is in addition to investing $44 billion in overseas clean energy projects last year, according to the Institute for Energy Economics and Financial Analysis.

In comparison, the European Union invested $39.9 billion in clean energy in 2015.

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