I am looking for a list of individuals that are either very high net
worth, or, celebrities that are known supporters of environmental
causes.  Links to information on the Internet that further defines
their involvement would be very helpful.

Hi! Thanks for the question.

Here are some links to articles referencing rich indviduals and
celebrities who join environmental causes.

Robert Redford ? ?He's been a forceful advocate for the Clean Air Act,
the Energy Conservation and Protection Act, and anti-strip-mining
bills ù lending his name to these efforts by testifying on Capitol
Hill, writing frequent op-ed pieces, and lobbying key members of
Congress.?
http://outside.away.com/outside/magazine/1097/9710robert.html 

Pierce Brosnan ? ?International film star and environmentalist Pierce
Brosnan yesterday teamed up with IFAW (International Fund for Animal
Welfare, http://www.ifaw.org) to launch its new research and education
vessel, uniquely designed for its mission to protect marine mammals.?
http://releases.usnewswire.com/GetRelease.asp?id=105-06072004 

Kevin Bacon ? ??the environmental organization Riverkeeper, credited
with leading the battle to restore the Hudson River and to save New
York City?s drinking-water supply.?
http://www.horizonmag.com/2/bacon-brothers.asp 

Ted Turner ? ?Ted Turner, the recipient of numerous honorary degrees,
is an active environmentalist. He crusades for cleaner transportation,
sustainable population growth, wilderness conservation and greener
business. He has worked to conserve endangered species, including
Mexican wolves, California condors, black-tailed prairie dogs and
desert bighorn sheep. He manages the largest private herd of bison on
his ranch in Montana and recently reintroduced wolves to this
property. He has received numerous civic and industry awards and
honors and was Time magazine's Man of the Year in 1991.?
http://www.umsl.edu/~biology/icte/WEArecipients/turner.html 

Robert F. Kennedy Jr. ?  ?Mr. Kennedy has worked on environmental
issues across the Americas. He has assisted several indigenous tribes
in Latin America and Canada in successfully negotiating treaties
protecting traditional homelands.?
http://www.riverkeeper.org/our_bio_rkennedy.php 

Ted Danson ? ?He is the co-founder of American Oceans Campaign (AOC),
an organization devoted to safeguarding the vitality of the oceans and
our coastal waters.?
http://www.kidzworld.com/site/p4233.htm 

David Duffield ? ?In 1998, he sunk $200 million into Maddie?s Fund, a
foundation dedicated to the spread of "no-kill" shelters. In the
lexicon of animal welfare, a "no-kill" facility is one at which no
adoptable animals are euthanized to free up cage space.?
http://www.philanthropyroundtable.org/magazines/2000-03/richardson.html 

Don Henley ? ??in 1992 the Eagles' drummer and East Texas native
created an organization ? the Caddo Lake Institute ? to study, protect
and improve the lake he grew up loving as a child.?
http://www.donhenley.com/news/index_enviro.asp?background=bg_tour.gif&Territory=0 

Woody Harrelson ? ?Woody has channeled his energies into various
environmental causes, including the saving of the California redwoods
and other endangered forests?As an environmentalist, he came to see
the legalization of industrial hemp as a solution to the worldwide
fiber shortage crisis.?
http://www.geocities.com/Hollywood/Boulevard/2200/bio.html

Harrison Ford ? ?The 59-year-old actor has been on the board of
Conservation International for more than 10 years and currently serves
as vice chairman. With more than 1,000 staff members in 30 countries,
Conservation International focuses its efforts on preserving
biodiversity hot spots around the globe.?
http://www.news.harvard.edu/gazette/2002/05.16/13-ford.html 

Mimi Rogers ? ?An avid environmentalist, she has chaired the One
Planet conference in the past, and is a board member of the Earth
Communications Office.?
http://www.imdb.com/name/nm0000211/bio 

Sting ? Setup the Rainforest Foundation to save the provide support to
the indigenous population of the world?s rainforest.
http://news.bbc.co.uk/1/hi/entertainment/music/3649071.stm

Bianca Jagger ? ?Jagger, also an environmentalist, was honored in 1993
at the First Annual Earth Day International Awards at the United
Nations in New York. In 1997 she was one of 10 recipients of the
Rainforest Alliance Green Globe Award for her conservation efforts and
achievements. ?
http://www.omnibuslectures.org/19992000/jagger.htm 


Our next link provides the celebrity members of the Coral Reef
Alliance, a group promoting the conservation of coral reefs. Such big
names include Leonardo DiCaprio, William Shatner and Peter Benchley
(the author of Jaws).

Coral Reef Alliance
http://www.coralreefalliance.org/divein/hostcommittee.html 

A past answer here at Google Answers mention the environmental
celebrities based in Connecticut. The answer of my fellow researcher
nancylynn-ga listed the following celebrities.

Joanne Woodward
Susan Sarandon
Tim Robbins
Meryl Streep 
Michael J. Fox
Ron Howard
Mariette Hartley
David Letterman
Dave Brubeck

You can read the previous answer in our next link. 

?Green celebs in CT?
http://answers.google.com/answers/threadview?id=356457 


Search terms used:
celebrities environmental projects causes projects

I hope these links would help you in your research. Before rating this
answer, please ask for a clarification if you have a question or if
you would need further information.
                 
Thanks for visiting us.                
                 
Regards,                 
Easterangel-ga                 
Google Answers Researcher

This is the first time I've used Google Answer.  I thought Easter
Angel did a very good job.  I would have been nice to see more names,
but this is a good start.

Dude, that's a lot, how much do you want?