Earth Day 2010 in Pictures

Yesterday was Earth Day, since 1970 it’s been a day set aside to remember and appreciate the Earth’s environment, and all of our roles within it.

The most detailed true-color image of the entire Earth created to date. Using a collection of satellite-based observations, scientists and visualizers stitched together months of observations of the land surface, oceans, sea ice, and clouds into a seamless, true-color mosaic of every square kilometer of our planet. Much of the information contained in this image came from a single remote-sensing device-NASA's Moderate Resolution Imaging Spectroradiometer, or MODIS. Flying over 700 km above the Earth onboard the Terra satellite. (NASA/Goddard Space Flight Center)

The Earth Day is a day designed to inspire awareness and appreciation for the Earth’s environment. It was founded by U.S. Senator Gaylord Nelson as an environmental teach-in held on April 22, 1970 and is celebrated in more than 175 countries every year.

The Earth Day is celebrated in spring in the Northern Hemisphere and autumn in the Southern Hemisphere. Many communities celebrate Earth Week, an entire week of activities focused on environmental issues. While the first Earth Day was focused entirely on the United States, an organization launched by Denis Hayes—the original national coordinator in 1970—took it international in 1990 and organized events in 141 nations.

The Earth Day is now observed each year on April 22 in virtually every country on Earth. Earth Day is now coordinated globally by the Earth Day Network. World Environment Day, celebrated on June 5 in a different nation every year, is the principal United Nations environmental observance.

The Earth Day 2010 coincided with the World People’s Conference on Climate Change, held in Cochabamba, Bolivia, and with the International Year of Biodiversity. [Earth Day via Boston’s Big Picture and NY Times]

In this aerial photo taken Wednesday, April 21, 2010 in the Gulf of Mexico, more than 50 miles southeast of Venice on Louisiana's tip, rising smoke and an oil slick are seen as the firefighting boats attend to the burning Deepwater Horizon oil rig. (AP Photo/Gerald Herbert)

A general view shows a "solucar" solar park in Sanlucar La Mayor, near Seville, Spain. (REUTERS/Marcelo del Pozo)

Windmills turn in the breeze at Horns Rev 2, the world's largest wind farm, 30 km (19 mi) off the west coast of Denmark near Esbjerg September 15, 2009. (REUTERS/Bob Strong)

An aircraft passes the moon over Frankfurt, Germany on Thursday, April 22, 2010, as German air traffic went back to normality following the airspace closure due to the volcanic ash cloud that came from Iceland. (AP Photo/Michael Probst)

A man takes a break on a sunny day on the grass of LaFayette Park near the White House in Washington, D.C. on April 22, 2010. (REUTERS/Jonathan Ernst)

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