John Quigley is an environmental educator and social activist. He was a key organizer for the Earth Day 1990 and 2000 events in Los Angeles. At the 1992 Earth Summit in Rio de Janeiro, he produced the World Walk in Copacabana for Earth Day International. He has worked with every major environmental organization in the US, served on the National and International Boards for Earth Day and is the Executive Director of Earth Day Los Angeles.

John is an aerial artist and has produced over 70 public images involving over 75,000 people in locations around the world. His recent human creations of Picasso's Face of Peace, Motherhood and Amnistia have garnered international acclaim. In 2005 he introduced extreme aerial art with Arctic Wisdom, an image with the Inuit people on the sea ice off Baffin Island. This event generated press around the world about global warming.

As an environmental educator, he launched the Adopt a Beach school assembly program in San Francisco and has produced 20 awareness beach aerials with over 20,000 children.

John has produced a series of highly creative outdoor spectacle shows, including "Awakening" at the UN Climate Change Convention in Buenos Aires in 1998, "Wild Ballona" in Los Angeles in 1999, and "Awakening: Solaria" at the Earth Summit in Johannesburg in 2002. His multimedia spectacles involve a unique combination of large video projections and the vertical dance troupe Project Bandaloop.

During the fall of 2002 and early winter of 2003, John sat in a 400-year-old heritage oak tree known as "Old Glory” to keep it from being cut down. In his more than two months in the tree he survived winter storms with sub-freezing temperatures and gusting winds of up to 90 miles an hour. The Tree-Sit captured the imagination of the community with more than 20,000 visitors making a pilgrimage to the tree.

The spotlight on "Old Glory" brought environmental and natural heritage issues to the forefront. As spokesperson for "Old Glory", he has appeared on all the national TV networks, CNN, and in newspapers coast to coast, including the LA Times, NY Times, Washington Post, and London Times. As a result, the tree has been saved from the chainsaws and moved to a nearby park.

John was born in St. Paul, Minnesota, growing up in a political family. He earned his BA from San Diego State University in drama.