edie's big fat sustainability quiz of the year 2017
When was Earth Overshoot Day? Which city pledged to introduce the world's first zero-emission zone? And just how cheap has offshore wind become? Take edie's 2017 sustainability quiz of the year to test your knowledge on some of the biggest moments in the global sustainability agenda over the past 12 months.
Read about each of these stories in more detail:
George Ogleby & Luke Nicholls