In the days following the second particle-pollution alert for the second consecutive year, Paris announced its Plan Vélo 2015-2020. The city is to invest 150 million euros to double bike lanes from 700 to 1,400 km, providing parking spaces for an extra 10,000 bikes, and even subsidizing the purchase of electric bikes up to 400 euros. Its goal is to draw 550,000 new cyclists onto the streets, effectively tripling the current biking population. Amsterdam, beware!