It’s been an amazing 12 months in the world of sustainable business. From climate change to inequality, the scope of humanity’s biggest environmental and social challenges came into much sharper focus this year — as did the scale and range of opportunities to do something about them. And citizens, using new social media tools and old-fashioned marches, rose up to drive change. Both in response and pre-emptively, the world’s leading companies continued to aggressively pivot their businesses toward more sustainable and innovative ways of operating.