46. Earthhour.smh.com.au
Created to take a stand against the greatest threat our planet has ever faced, Earth Hour uses the simple action of turning off the lights for one hour to deliver a powerful message about the need for action on global warming.
http://earthhour.smh.com.au

47. Livingearth.com
Stock photos of the Earth Day & Night, Satellite Imagery, custom graphics, and Photographs.
http://livingearth.com

48. Earthwatch.com
The first weather web site giving you continuously updated satellite, radar, and forecasts. StormWatch severe weather watches, warnings & advisories updated every 10 minutes.
http://www.earthwatch.com

49. Earthsite.org
environment, nature, economy, peace, people, society, culture, education, entertainment, music, spirituality, lifestyle,
http://www.earthsite.org

50. Earthisland.org
Bay Area Wilderness Training (BAWT) California Student Sustainability Coalition Campaign to Safeguard America's Waters (C-SAW) Center for Ecosystem Restoraion Eco-Village Farm Learning Center International Marine Mammal Project (IMMP) Reef Protection
http://www.earthisland.org

51. Earthwindandfire.com
earth, wind and fire, earthwindandfire, Earth, Wind Fire, EWF, earth, wind, fire, ewffans, ewffanclub, fanclub, news, music, Philip Bailey, Verdine White, Ralph Johnson, Rymthm and Blues, Rock and Roll, Hall of Fame, Boogie Wonderland, September,
http://www.earthwindandfire.com

52. Earth-policy.org
The purpose of the Earth Policy Institute is to provide a vision of what an environmentally sustainable economy will look like, a roadmap of how to get from here to there, and an ongoing assessment of this effort, of where progress is being made and where
http://www.earth-policy.org

53. Earthforce.org
Earth Force is youth-driven with a national Youth Advisory Board (YAB) made up of 15 members, ages 12-17. The YAB helps develop and implement Earth Force programs.
http://www.earthforce.org

54. Nature.net
These images of North American birds are from watercolors done by John James Audubon (1785-1851).
http://www.nature.net

55. Network.nature.com
Connecting scientists worldwide, with blogs, forums, and groups. Social networking for scientists. From the publishers of Nature.
http://network.nature.com

56. Nature.ca
Canadian Museum of Nature, hours, admission, activities, galleries. Games and info about nature. Musée canadien de la nature, heures, droits d'entrée, activités, galeries. Jeux et info sur la nature.
http://nature.ca

57. Naturedetectives.org.uk
Children's wildlife club and FREE website with downloads, fun games and kids activities. Nature spotting, topics and ideas for outdoor learning.
http://www.naturedetectives.org.uk

58. Natureair.com
Based in San Jose, Costa Rica, Nature Air is Central America's premier airline for adventure travel, luxury vacations and eco tours with 74 daily flights to 17 exotic vacation spots in Costa Rica, Panama, and Nicaragua.
http://www.natureair.com

59. Naturephotographers.net
An online nature photography resource dedicated to the art and technique of nature, wildlife and landscape photography.
http://www.naturephotographers.net

60. Secondnature.org
Second Nature's mission is to accelerate movement toward a sustainable future by serving and supporting senior college and university leaders in making healthy, just, and sustainable living the foundation of all learning and practice in higher education.
http://www.secondnature.org