Humans have lived in environments with plants and animals for thousands of years. Only in the last couple of hundred years have humans created cities covered in concrete, void of vegetation. Today, more than half of the people in the world live in urban environments. This is why More Dirt was born: To provide a site where folks can learn how to bring more dirt and green life to their cities; so that people have clean air to breathe; fresh locally grown food to eat; and can combat global warming right in their own neighborhoods.