Brazilians observe how Germans are creating Low Emission Zones in cities

When it comes to the performance and quality of our streets in cities around the world, the simple truth is that for now at least we are stuck with far more losers than winners. But that is only part of the story; and one of the tasks of World is to keep a weather eye out for projects and programs, tools and policies which open up the possibility of creating better streets and better cities. Here for example you have a conversation between a Brazilian environmentalist and a German scientist running a pioneering program for a low emissions zone which is up and running in Berlin.
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