Posts Tagged ‘usual’

To destroy human civilisation we just need to continue with business as usual | Letters

China‚Äôs strategy for dealing with air pollution is a cosmetic exercise cynically timed to coincide with the Paris summit on climate change (Airpocalypse now: factories and schools in Beijing shut by unprecedented smog alert, 9 December). The 24-hour WHO limit for small particulates is 25 microgrammes per cubic metre of air, though recent studies have […]