While sustainable forestry techniques -- such as selectively culling trees rather than clear-cutting whole areas of forests -- could reduce deforestation of rainforests by millions of acres per year, according to National Geographic, travellers can also play their part.

BBC: The repercussions of rainforest reduction

Over the past decade, Brazil has cracked down on clear-cutting, especially in the biodiverse Amazon rain forest, reducing the rate of deforestation by 80%.

CNN: Brazil delays vote on bill regulating deforestation