An Afghan girl arrives to the shore of Lesbos suffering from hypothermia after crossing from Turkey in mid winter. Shot for MSF/Greenpeace
As the Arctic sea ice retreats over 700 miles from the shore in the autumn, bears must either head north or swim south to land as the ice breaks up.
Since the beginning of December 2013, the influx of refugees into Uganda has continued to increase, leaving tens of thousands of people in dire need of emergency medical care, shelter, food, water and adequate sanitation facilities.
Anjali Gayen's farmland was destroyed by cyclone Aila. Hundreds of people were killed and more than 22,000 homes were ravaged when cyclone Aila struck the Bay of Bengal in May 2009. The cyclone destroyed the former wall, smashing it to pieces, rendering people homeless and destroying farmland.
A young girl walks from her make shift home in the morning to make porridge for her brothers and sisters. They have been separated from their parents while fleeing to Uganda.
Greenpeace climbers and a Polar Bear head out to protest against ExxonMobil's plans to drill in the Russian Arctic on the 25th anniversary of the Valdez oil disaster.
Ex Lawyer and Guru, Acharyanirj leads the group of holy men and professionals on a 2,500 kilometre march from the source of the Ganges to its delta. The group hope to raise awareness about toxic industrial discharge and pollution in the Ganges.
This girl was rescued and taken to the These Little Angels orphanage in Uganda after her mum tried to kill her. Two days later, this was her first day at school.
Dr Hans Thewissen from North Eastern Ohio Medical University takes bone samples from remains left by Inupiat hunters.
A 'pompong' boat driver from the village of Teluk Meranti looks out over the Serkap River at an approaching storm.