Lichens function as indicators of nitrogen pollution in forests

Scientists have found lichens can give insight into nitrogen air pollution effects on Sierra Nevada and San Bernardino mountain ecosystems, and protecting them provides safeguards for less sensitive species.

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<p><a href="http://www.physorg.com/news142523233.html">Lichens function as indicators of nitrogen pollution in forests</a></p> <p>Scientists have found lichens can give insight into nitrogen air pollution effects on Sierra Nevada and San Bernardino mountain ecosystems, and protecting them provides safeguards for less sensitive species. </p>