Pictures From Nasa

Sun 21 September 2014

Over the past few decades, average global temperatures have been on the rise, and this warming is happening two to three times faster in the Arctic. As the region's summer comes to a close, NASA is hard at work studying how rising temperatures are affecting the Arctic. The Arctic Radiation - IceBridge Sea and Ice Experiment, or ARISE, is a new NASA airborne campaign to collect data on thinning sea ice and measure cloud and atmospheric properties in the Arctic. The campaign was designed to address questions about the relationship between retreating sea ice and the Arctic climate. (Chris Larsen, University of Alaska-Fairbanks) # 4 At about 10:45 p.m.

4. About 370 Ukrainian refugees will stay at this temporary camp while being processed by the Russian authorities, local media reported. (Ilya Naymushin/Reuters) # 25 An office worker looks over at a man sleeping inside the container he uses to collect cardboard for recycling, at the financial district in Buenos Aires, Argentina. The collapse of talks with US creditors sent Argentina into its second debt default in 13 years and raised questions about what comes next for financial markets and the South American nation's staggering economy. (Rodrigo Abd/Associated Press) # 26 Passengers sleep on a train bound for northeastern province of Ubon Ratchathani at Hua Lampong railway station in Bangkok on Aug.

Deadly flooding in India and Pakistan

9. Bewildered families, nursing children and clutching meagre belongings, packed into makeshift relief centers after fleeing floods in India and Pakistan that have now claimed more than 400 lives. (PUNIT PARANJPE/AFP/Getty Images) # 15 Tourists wait to be evacuated by Indian Air Force helicopters during rescue and relief operations following flooding in Srinagar on Sept. 10. Anger mounted September 10 over the slow pace of rescue operations in Indian Kashmir as authorities said they were "overwhelmed" by the scale of deadly flooding that has left hundreds of thousands of people stranded.

Volcanic activity

Residents were advised to stay away at least four kilometers from the 3,436 meters high volcano. (EPA) # 16 Mount Sinabung volcano seen as smoke and ash fill the air, in the Karo district of Sumatra island on Aug.