The United States on Tuesday ended pollution tracking by its embassies that had been a vital source of data especially in ...
BEIJING--Authorities issued their highest warnings for fog and haze on Tuesday as smog enveloped major cities in northern China, warning the public that visibility could drop to less than 50 ...
The program had used sensors at more than 80 U.S. embassies and consulates to track air quality, mostly in places where such ...
China’s top leaders pledged to expand the nation’s emissions trading system to cover more industries amid a wider push to ...