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In the first update for 16 years, the guideline limit for the most damaging pollution – tiny particles from burning fossil fuels – has been halved

theguardian.com/environment/20

@jorge

Which raises the question of why the allowed level of pollutants was so high before. The cynic in me wonders whether the reason why they're making this shift *now* is that electric vehicles are more available now, so that it's plausible for countries to come into line without making any big changes to things like urban design : \

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