Activist wins Goldman prize for effort to clean up California trucking and railway sectors

Andrea Vidaurre helped persuade regulators to adopt rules that will improve air quality for millions in one of US's smoggiest areas

A grassroots organizer from one of the US's smoggiest communities has been awarded the prestigious Goldman prize for environmental activists, after leading a successful campaign to clean up California's trucking and railway sectors.

Andrea Vidaurre from Inland Empire, a sprawling metropolitan region in southern California, helped persuade state regulators to adopt two historic transport regulations that will improve local air quality for millions of people - and accelerate the country's transition away from greenhouse gas-spewing vehicles.