An African penguin being washed by staff at the South African Foundation for the Conservation of Coastal Birds after it was found covered in oil on Robben Island near Cape Town, South Africa. Around 55 penguins have been found covered in oil from a spillage by the Turkish bulk carrier the Seli One. (AP)

U.S. Secretary of State Hillary Rodham Clinton attends a press conference at the Great Hall of the People in Beijing, China. (AP)

A Greenpeace activist, dressed as a polar bear, sits inside a police car after being detained outside Gazprom’s headquarters in Moscow, Russia. Russian and international environmentalists are protesting against Gazprom’s plans to pioneer oil drilling in the Arctic. (AP)

U.S. First Lady Michelle Obama is cheered as she addresses the first session of the Democratic National Convention in Charlotte, North Carolina, September 4, 2012. (Reuters)

An Emirati man checks the stand of Emirati firm Tawazun Adnaced Defense Systems on the first day of the Abu Dhabi International Hunting and Equestrian exhibition, which offers visitors the chance to enjoy camel auctions and traditional hunting and equestrian activities. (AFP)

A Tibetan activists waves a Tibetan flag from a electric pole during a protest outside Qutub Minar during Chinese Defense Minister Liang Guanglie’s visit to the monument in New Delhi, India. (AFP)

Ground staff dry the court at the U.S. Open tennis tournament in New York. (Reuters)

Visitors adhere circular stickers in a room installation at the exhibition ‘Dot.Systems – from Pointillism to Pixel’ by Japanese artist Yayoi Kusama at the Wilhelm-Hack Museum in Ludwigshafen, Germany. The installation was created by all the visitors who attached the colorful stickers. (AP)

Britain’s David Anthony reacts to scoring a goal against the U.S. during the pool phase group A wheelchair rugby match between Britain and the U.S. at the London 2012 Paralympic Games at the Olympic Park Basketball Arena in east London. (AFP)