Continuing with our series of best nature and wildlife photos of 2011, this post lists best and award winning environmental photos of 2011. The source of the images is National Geographic and image copyright information is available below individual photos.
Here are the best environmental photographs of 2011
Homeless Children:

Photograph by Chan Kwok Hung
This photograph of homeless children in a scrapyard in Nepal won the top honor in “Quality of Life” category. The children search scrapyard for usable items and sell them to buy their food and clothing.
Penguins and Fire:

Photo Credit: Shem Compion
This photo by Shem Compion raises awareness about African penguins which are endangered due to commercial fishing and degrading natural ecosystems and habitats. The fire behind the species makes their situation even worse.
Silver and Gold:

Photograph by Bjørn Leirvik
An amazing photograph showing the aerial view of a watercraft splitting calm surface of water during sunset.
Lightning at Kaieteur Falls:

Photo Credit: James Broscombe
The photographer appears to have clicked this image synchronizing with the lightening that earned him top honors in the best environmental photo awards.
Occupy Earth:

Photo Credit: Karen Bleier/AFP/Getty Images
Thousands of people demonstrated in front of White House, Washington D.C. against the proposed Keystone XL pipeline.
Changing-Climates - Lost Villages:

Photograph by Neil A.
Holderness coast in Yorkshire is the worst affected area in coastal erosion. The photo shows a sea side road being completely eroded away by coastal waves.
Pray for Rain:

Photo Credit: jdn/Flickr
Texas experienced a sever drought in year 2011 and a sign of “Pray for Rain” displayed on a fence in a dry field shows the dying hopes of people hit by drought.
Eyjafjallajköull Volcano fiery show:

Photograph by Skarphéðinn Þráinsson
This amazing photograph was clicked when Eyjafjallajökull volcano in Iceland erupted on May 15 and displayed an awesome firework.
End of an Era – Goodbye Atlantis

Photo Credit: Bill Ingalls/Getty Images
Space shuttle Atlantis took off its last flight on July 8 from NASA’s Kennedy Space Center and marked the end of an era of space exploration.
Astronauts return to Earth:

Photo Credit: Bill Ingalls/NASA
Soyuz TMA-02M spacecraft capsule landed on earth on November 22 in Arkalyk, Kazakhstan carrying astronauts who spent five months in international space station.
Chicago Blizzard:

Photo Credit: Scott Olson/Getty Images
A blizzard in Chicago on February 2 stranded hundreds of cars after the city received 20 feet snowfall, third largest recorded in the history of city.
Japan Earthquake and Tsunami Havoc:

Photo Credit: Asahi Shimbun/Getty Images
The earthquake induced tsunami wrecked havoc in japan after a 9.0 magnitude earthquake hit north-east Japan and caused nuclear emergency.
Texas wildfire:

Photo Credit: Staff Sgt. Eric Harris/U.S. Air Force
In April 2011, wildfires burnt nearly 1000 square miles of forest area in Texas. U.S. Forest Service and other agencies trying to extinguish the fire.
Chair bridge:

Photo Credit: ZUMA Press
A chair bridge is what paved the way around for students in Hubei University in China’s Wuhan province after the flood engulfed the area with knee deep water.
Cape Town Sunset:

Photo Credit: ZUMA Press
Mist floats above the Atlantic Ocean at sunset in Cape Town, South Africa on May 17.