What is Change?
We live in a changed world. Today, less than a quarter of the planet’s land surface can still be considered to be wild. The rest of the Earth’s surface has been transformed in a variety of ways by human activities. These activities include:
- removing natural tree cover to use the land for farming and cities
- damming and diverting rivers to produce electricity and more reliable sources of water
- digging for valuable minerals and energy sources beneath the surface
- polluting the land, air and water with waste materials.