Beijing issues its 2nd red alert for air pollution
Altay sees more Siberian ibex, goitered gazelle
Singapore's polar bear celebrates 25th birthday
World's 4th largest lake Aral Sea shrinking
Giant pandas try new life in China's cold north
Swans leave freezing Siberia for sunny Henan
Pavilions at Paris COP21
Momotombo Volcano in Nicaragua erupts
White tiger cubs become one month old
Dolphin strands on beach of El Condor, Argentina
Wildlife in Masai Mara National Reserve
Heavy rains bring India's Chennai to standstill
Heavy sandstorm sweeps across parts of Middle East
Heavy smog hits NE China's Heilongjiang
Snow turns Xinjiang into winter wonderland
Heavy rains cause floods in Baghdad, Iraq
