Climate Change
The world's climate has always been changing, but climate change in the past has been mostly gradual, with some rapid ev... MoreClimate Change
Water
Water keeps us and our world alive. Without it we couldn't exist. Water and climate influence every aspect of human life... MoreWater
Oil
Petroleum has utterly changed the way we live. But has the cost to the planet been too great? Has oil overheated our cli... MoreOil
Question It!: Food
Food is fundamental to life on Earth. The struggle to find or grow food, and often failing, is the story of human histor... MoreQuestion It!: Food
Natural Habitats
In an era when the global environment is defined by humans and their activities, humans are destroying natural habitats ... MoreNatural Habitats
Population
The world's population is growing, and with this growth comes an increased pressure on the resources, such as food, wate... MorePopulation