Sustainability is based on a simple principle: Everything that we need for our survival and well-being depends, either directly or indirectly, on our natural environment. To pursue sustainability is to create and maintain the conditions under which humans and nature can exist in productive harmony to support present and future generations. -- from US Environmental Protection Agency
Dr. Robert Moreau, Manager of Turtle Cove Environmental Research Station, discussed US environmental history, 4/10/2019
History of the Environmental Movement Presentation slides from Dr. Robert Moreau 4/10/2019
What is Earth Day?
Earth Day was a unified response to an environment in crisis — oil spills, smog, rivers so polluted they literally caught fire. On April 22, 1970, 20 million Americans — 10% of the U.S. population at the time — took to the streets, college campuses and hundreds of cities to protest environmental ignorance and demand a new way forward for our planet.
The first Earth Day is credited with launching the modern environmental movement, and is now recognized as the planet’s largest civic event.
(From EarthDay.org)