At the boundary of the Forestal's reign, mute hurt gave way to aliantha, and the Sunbane was gone from the pristine sky.

The researchers then modeled the effect of aerosols and also concluded the overall effect was that water drops in polluted cases are up to 50 percent smaller than in pristine skies.

Smoky columns rose above the crossroads, staining what had been a pristine sky.

The contrast between pristine blue sky and the Nevada desert's reddish earth is a sight to behold.

LEAD: An air of uncertainty underlies the pristine blue sky, turquoise ocean and outward calm here, where golfers pay $175 for 18 holes on one of the world's most famous golf courses.

London, England August 7th The pristine blue sky was tarnished only by chalky traces of cloud that seemed so forgotten and haphazard they might have been left behind by an absentminded god.

A magnitude of seven equals a pristine sky while four or less equals an urban sky.

Pollutants turned the pristine morning blue sky to a sickly yellow-gray.

There was only one way to watch a skylark, so they'd sunk to the ground and lain back, eyes on the pristine blue sky as the bird became a dot too small to distinguish.

The cliffs that speared defiantly from savage sea to pristine sky.