Last seen in:
- The Times - Concise - Times Concise No 8564
- The Times - Concise - Times Concise No 8341
- Universal - Sep 30 2017
- The Times - Concise - Times Concise Jumbo No 1263
- Newsday.com - Mar 5 2012
- Thinks.com - Feb 1 2010
- Thinks.com - Feb 1 2008
- The Times - Concise - Times2 Concise 4439 - February 1, 2008
- The Times - Concise - Times2 Concise 3558 - April 7, 2005
- New York Times - Sep 8 1998
Related Clues:
- Environmentalist's concern
- Environmental hazard
- Environmental problem
- Environmental concern
- Damaging precipitation
- Threat to alfresco artwork
- Environmental woe
- Environmental awareness topic
- Ecological danger
- Low-pH precipitation
- Corrosive stuff from the sky*
- Harmful downfall
- One cause of deforestation
- Corrosive stuff from the sky
- Destructive precipitation