ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Many attempts have been made to trace increases in global pollution from the record of impurities preserved in polar snow and ice layers. Although inadequate sampling and analysis techniques have hampered some of the studies, others have improved uniquely our understanding of the history of changes ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/313535a0
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