1.   Low river flow worsens pollution, since there is less water to dilute sewage and other outflows.

2.   One effect could be to worsen air pollution, Lowe says.

3.   Other analysts say newer plants will worsen air pollution in the area, unlike Indian Point, which does not contribute in significant ways to air pollution.

4.   The feds seem poised to slap Arizona for worsening ozone pollution, which could trigger growth-hindering regulations.

5.   They worried that the store would attract motorcycle gangs, increase traffic and worsen pollution.

6.   Forest fires in parts of Indonesia have reached dangerous levels in recent weeks, bringing hazy skies and worsening pollution to Singapore and parts of Malaysia.