pollution

Which American state has the most earthquakes? If you guessed Alaska or California, you might have been right — years ago. These days, the title goes to Oklahoma, where research links the oil and gas industry to the quakes.

Airplanes are now the largest source of lead pollution in the United States. A new study suggests Americans hurt by lead exposure may be suffering billions in lost wages.

When New York is enveloped in pollution, the stock market loses value and sends a negative signal to global markets, a new paper finds.

One of the most persistent arguments against efforts to stop man-made global warming is that environmental regulations — mandates to reduce carbon emissions or require polluters to pay, for example — put people out of work. Proponents of such laws argue that they can create jobs by encouraging technological innovations. Critics say they burden business.