Nor does China's air pollution respect borders: on certain days almost 25 percent of the particulate matter clotting the skies above Los Angeles can be traced to China, according to the United States Environmental Protection Agency. Environmental experts in California predict that China could eventually account for roughly a third of the state's air pollution.
After one of the deadliest months for coal mining in years, federal mine regulators last week began formally considering safety improvements to help miners survive underground fires and explosions. Among the proposals: mandatory caches of oxygen tanks and breathing masks inside every coal mine.
The idea may have struck some miners as familiar, because it was. A similar proposal was put forward by the same regulators six years ago, only to be scrapped by the Bush administration shortly after it took office. And the oxygen caches were not the only proposed safety improvement to be withdrawn.
In all, the Bush administration abandoned or delayed implementation of 18 proposed safety rules that were in the federal Mine Safety and Health Administration's regulatory pipeline in early 2001, a review of agency records shows.