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London, San Francisco and Beijing achieve ‘remarkable reductions’ in air pollution (www.theguardian.com)

submitted 4 hours ago by HellsBelle@sh.itjust.works to c/world@lemmy.world

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London, San Francisco and Beijing are among 19 global cities that have achieved “remarkable reductions” in air pollution, analysis has found, having slashed levels of two airway-aggravating pollutants by more than 20% since 2010.

The analysis found interventions such as cycle lanes, uptake of electric cars and restrictions on polluting vehicles had helped to drive the improvements.

Beijing and Warsaw topped the ranking for cleaning up fine particulate pollution (PM2.5), reducing levels by more than 45%, while Amsterdam and Rotterdam saw the greatest improvement in nitrogen dioxide (NO2), with cuts of more than 40%.

San Francisco was the only US city that cut levels of both pollutants by more than 20%, according to the analysis of nearly 100 cities around the world. China and Hong Kong are home to nine of the 19 cities, with European cities making up the rest.

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[–] palordrolap@fedia.io 1 points 1 hour ago

So I actually had to drill down into the report itself to find this out:

The organisation releasing the report has offered suggestions and policy ideas to local (if not national) governments that ought to bring down pollution and then relied on those cites to report back the success (or otherwise) of the implementation.

That alone has my sus alarm jingling. People never lie about pollution. Just ask, I don't know, Volkswagen, maybe.

It also doesn't report on whether that pollution - if it actually has reduced in a particular area - has simply moved outside the monitoring area. Because I bet there's a bit of that going on too.