1.   The trees are being killed by acid rain and other industrial emissions.

2.   It was also one of the most polluted, both because of insufficiently controlled industrial emissions and its high density of population.

3.   Industrial emissions from Europe, Asia and North America are believed to be responsible for the phenomenon.

4.   The Board claims that environmentalists have underestimated the degree of protection afforded by clouds and industrial emissions.

5.   Bailey said the industry would favor a system of pollution credits much like that which now governs industrial emissions of sulfur dioxide.

6.   Cox said that under Bush Texas has become the leading source of industrial toxic emissions in the country.

7.   Despite this, Texas still ranks first in industrial emissions, when excluding mining waste.

8.   EPA officials decided to develop new smog standards at the same time because many of the sources, such as car exhaust and industrial emissions, are the same.