For days, Beijing has been trapped under a blanket of yellow-brown dust that the U.S. Embassy air monitor classifies, in its hourly reading, ' hazardous.' Living under Beijing skies, one【M1】______ has come to expect an incremental uptick in the number of officially declared 'blue sky' day each year.【M2】______ Nearly two years after the world failed to achieve a decisive climate change deal in Copenhagen, and we ve become used to【M3】______ many of what we read about the human effects of carbon【M4】______ emissions. Orville Schell, the author and the journalist who heads【M5】______ the Center on U.S.-China Relations at the Asia Society, has written repeated about the need for global cooperation on climate change.【M6】______ 'As a writer, I felt that what I wrote had limited effect,' he told me recently, 'so we decided to try a different approach: Lets do it in a visual way.' The results are in display now at the Three Shadows【M7】______ Photography Art Centre in Beijing, and, with luck, it will be near【M8】______ you soon. 'Coal + Ice' is a documentary exhibition encompassing works by thirty photographers around the world.【M9】______ It seeks to doing something unprecedented: to chart the horrific【M10】______ grandeur of our effects on the planet, from the coal mines beneath our feet to the dwindling glaciers on our highest mountains. The images chosen by curators Jeroen de Vries and Susan Meiselas describe a spectrum that is vast in aesthetics and geography. 【M1】