2016 brought significant progress on global sustainability issues.
The beginning included the launch of the United Nations Sustainable Development Goals, aimed at addressing global poverty and environmental protection.
Then, about halfway through the year, the Paris Agreement received a significant boost with support from the two biggest greenhouse gas emitters: the U.S. and China.
Despite the headway made, the end of the year brought serious uncertainty and fear about some gains being reversed. While we can expect progress on many fronts in 2017, in others, environmental advocates will have to cross their fingers. To that end, here are four highlights to watch in 2017 — the good, bad and the ugly.