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More collaboration is needed to reduce the impact of highways on the environment, particularly air quality. The technology already exists, argue Bram Miller* and Martin Broderick* The European Environment Agency produced a report showing that a slow improvement in air quality has been observed across Europe. However, 9% of urban Europeans were exposed to nitrogen dioxide emissions in excess of the EU’s annual maximum limit in 2015. Meanwhile, associations between highways and the environment tend to be n

The UK’s busy M6 motorway is benefiting from widening work.