We are eating our way through tropical forests. Whether it’s a cappuccino for breakfast, a burger for lunch or a chocolate bar as an after-dinner treat, the things we consume in OECD countries are often linked to deforestation in the tropics, where trees are falling at alarming rates.

Last year, actor Sean Penn called on world leaders to help Haiti deal with the "looming existential threat" of climate change. 

The celebrated marine scientist Jacques Cousteau once said that “All life is part of a complex relationship in which each is dependent upon the others, taking from, giving to and living with all the rest.” This is especially true of water. Freshwater management, oceans and marine ecosystems are intimately linked to almost every other environmental and humanitarian issue.