Activists of the World Wide Fund For Nature (WWF) set up led-lights in front of the illuminated Brandenburg Gate to mark Earth Hour, in Berlin.
A tree art installation made up of individual trees and Hydrangeas is seen in front of the U.S. Capitol building on Capitol Hill in Washington to celebrate Earth Day and promote the planting of trees in an effort to combat climate change.
A worker walks on plastic bottles as he sorts them before sending them to be recycled at an industrial area on the outskirts of Jammu.
Children collect plastic bottles to recycle from a polluted River Brahmaputra in Guwahati. April 22 is observed as Earth Day every year as a tool to raise ecological awareness.
A rag-pickers searches among piles of garbage in Dimapur, Nagaland. This year's Earth Day theme focuses on 'Ending Plastic Pollution'. It is devoted to contribute information and inspire to change human attitude and behaviour about plastics.
Students of Allahabad Central University make a sand sculpture which reads 'Save Earth' on the occasion of 'World Earth Day' on banks of river Ganges at Sangam, in Allahabad.
A man walks on a part of the parched dried-up bed of Upper Lake on the occassion the World Earth Day in Bhopal. World Earth Day is marked in many countries annually on 22 April to raise awareness of the earth's environment.
Bollywood actress Diya Mirza and Yuva Sena Chief Aditya Thackery take part in a Beach Clean up and Tree Plantation drive at Dadar Chowpatty on the occasion of World Earth Day, in Mumbai.
The dried Ganga river basin at Sangam, winds through the confluence of the Ganges, Yamuna, and the mythical Saraswati River on the world Earth Day in Allahabad.
A school girl displays her artwork promoting the conservation of the planet during the world Earth Day at Chandra Shekhar Azad Park, in Allahabad.
Students of A N College, carry earthen pots, during the 'save birds campaign' on the occasion of World Earth Day, in Patna.
School children take an oath to keep the planet clean after participating in a rally on the world Earth Day at the Chandra Shekhar Azad Park, in Allahabad.
School children display their drawings promoting the conservation of the planet on the world Earth Day at Chandra Shekhar Azad Park, in Allahabad.
School children participate in a rally depicting slogans of conservation of the planet on the world Earth Day at Chandra Shekhar Azad Park, in Allahabad.
School children hold posters with slogans promoting the conservation of the planet on the world Earth Day at the Chandra Shekhar Azad Park, in Allahabad.
School boys draw pictures promoiting the conservation of the planet on the world Earth Day at the Chandra Shekhar Azad Park, in Allahabad.
A school child draws a tree promoting conservation of the planet during world Earth Day at the Chandra Shekhar Azad Park, in Allahabad.
Men sift through a dump site looking for recyclables on the outskirts of Jammu. International Earth day falls on April 22.
