WHAT IS SUSTAINABILTY?
At its broadest level, environmental or global sustainability refers to Earth's ability to continue functioning in a manner that supports humans and other ecosystems. Sustainability includes a host of environmental, economic, and social issues. It is common to hear about sustainable agriculture, business, development, education, lifestyles, policies, and sustainability science. The United Nations Division for Sustainable Development lists more than forty different issues of current concern relating to sustainability, including atmosphere, climate change, demographics (population growth and structure), energy, international law, poverty, sanitation, and toxic chemicals.