If global shipping were a country it would be the sixth biggest producer of greenhouse gases. We talk to the pioneers in the race to make boats more environmentally friendly.
This year's forest fires in the Amazon marked an environmental catastrophe, but a Rolex-award-winning scheme to save its largest fish spells hope for the future.
The opening of a major new centre for the study of wildfire in London this year is the latest admission of the impact it is having on society and the environment.