Yale Environment 360: Chinas new premier, Li Keqiang, has vowed aggressive government action to curb the rampant pollution that has provoked growing public outrage, saying the country would phase out backward production facilities that have contributed to dangerous health conditions in numerous regions. Speaking at his first press conference, Li said the government would set deadlines to address the public health controversy, exemplified by choking air pollution over Beijing that has kept air quality at dangerous levels...