In the publishing game, you never know which story is going to make the front page of Reddit and crash the website.
This year’s viral hit came courtesy of the shipping industry, when an executive turned on the lobbyists holding up climate action in the International Maritime Organization.
Donald Trump loomed large, of course, his declaration he would pull the US out of the Paris climate agreement sending shock waves around the world.
And from the Brazilian Amazon to Bangladesh, we hosted a wealth of exclusive, in-depth reporting on the causes of and cures for climate change.
Take a virtual tour with our world map of 21 top stories.