Fifteen years ago, Beijing's Liangma riverbanks would have been smog-choked and deserted in winter, but these days they are dotted with families and exercising pensioners most mornings.

Pollution in many Chinese cities still exceeds WHO limits, but levels have dropped sharply since the 'airpocalypse' era.

Asharq Al Awsat A 17th century Swedish Navy shipwreck buried underwater in central Stockholm for 400 years has suddenly become visible due to unusually low Baltic Sea levels. The wooden planks of the ...