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The Inquiry
What is China Doing to Clear the Air?
The Inquiry
Jan 19, 2016

The air in much of China is so bad the government has repeatedly declared "war" on it. The enemy are tiny particulates which spew forth from countless cars, coal-fired power stations and steel plants to create a dense, putty-coloured smog. Known as PM2.5s, after their length in micrometres, the particulates contain toxic droplets so small they embed deep in the lungs and sometimes even the bloodstream. A former Chinese minister of health has estimated that as many as 500,000 Chinese citizens die prematurely because of them every year. Others have suggested the figure is far higher. Campaigners speak of an ‘airpocalypse’. Public anger is rising, and winning this war has become a top priority for the Communist Party. Beijing recently issued its first pollution 'red alert', closing schools, factories and construction sites. It ordered half of all private cars off the road. But such draconian measures were only temporary. The real question, in a country where millions of people still look to industrialisation to lift them from poverty, is this: what can China do to clear the air? Guests include a man who used to write China's environmental laws and a leading activist with some surprising answers. (Photo: A man and his child wear masks to protest against pollution. Credit: Getty Images)

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Should we mine the Moon?

The recent Nasa Artemis II crewed mission to the far side of the Moon is a further step towards a long-term return to the lunar surface and future missions to Mars. The plan is that before the end of the decade there will be a crewed landing and the start of a Moon base. China is among those developing similar plans. Previous missions both crewed and uncrewed have provided evidence of resources that potentially could be of use here on Earth, and support human life on the Moon.

So, it’s not just the race to the Moon that’s capturing the world’s attention, but also the possible economic benefits that that might bring with it. The Moon’s surface or lunar regolith contains volatiles like hydrogen, carbon dioxide and methane. There is evidence of minerals such as silicate and oxides and metals like aluminium and titanium, which could be extracted for building materials. And something that is rare on Earth, Helium-3, a potential resource for clean fusion energy. Governments in conjunction with private corporations are already working on the technology to extract these resources.

Concerns have been raised about the potential damage to the Moon, not only in terms of the depletion of its resources, but in terms of its scientific value and its cultural heritage. Protection ranges from established treaties that prohibit ownership of the moon, to national laws that permit resource extraction. But to date, there is no universally accepted international law in place, which explicitly permits or prohibits lunar mining.

So, this week on the Inquiry, we’re asking ‘Should we mine the Moon?’

Contributors: Dr Dylan Mikesell, principal geophysicist, NGI-The Norwegian Geotechnical Institute, Oslo, Norway Dr Justin Holcomb, assistant research professor, Kansas Geological Survey, University of Kansas, USA Prof Dr Thomas Zurbuchen, director of ETH Space, Swiss Federal Institute of Technology, Zürich, Switzerland Dr Tanja Masson-Zwaan, assistant professor and deputy director, International Institute of Air and Space Law, Leiden University, The Netherlands

Presenter: William Crawley Producer: Jill Collins Editor: Tom Bigwood Sound engineer: Nicky Edwards

(Photo: The Moon. Credit: Reuters)


23min 57sec



What is China Doing to Clear the Air?

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