Information Guides

There’s two main types of air pollution – indoor air pollution, and outdoor air pollution. This guide focuses specifically on indoor air pollution. We look at the main causes and sources, the effects, the parts of the world where it causes the most harm and is most prevalent (which is mostly lower income countries and … Read more

There are different phrases used to describe the different water issues in the world. Different organisations or individuals may describe different things when using these phrases, and may use them in different contexts. To clear up some of the potential uncertainty or confusion, what we’ve done in this guide is unofficially describe each phrase individually, … Read more

In this guide we outline how much land there is on Earth, and also what it’s used for. We look at some important stats such as total land, total habitable land, as well as %’s of agricultural land and arable land. We’ve also outlined what the major uses of land are on both a global … Read more

In the guide below, we outline how much water there is on Earth, how much of it is saltwater vs freshwater, and other information relating to water on Earth and where it’s located.   (*Note – the numbers in this guide are estimates, and are to be used as a general guide only.)   Summary … Read more