Temperature effects on the acidity of remote alpine lakes
Article Abstract:
There was a rise in pH and the concentration of sulphate, silica and base cations in 57 remote alpine lakes between 1985 and 1995. In contrast, concentrations of inorganic nitrogen declined. It is likely that these changes were caused by a rise in air temperature of around 1 deg C since 1985, leading to enhanced weathering and a rise in biological activity. Climate warming can have an impact on water chemistry in remote alpine lakes, and can even cancel out the possible effects of acid deposition.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Asynchronous deposition of ice-rafted layers in the Nordic seas and North Atlantic Ocean
Article Abstract:
There is a lack of widespread systematic correlations between ice-rafted debris layers in sediment from the Nordic seas, and between Nordic and North Atlantic Heinrich layers. This indicates that unstable behaviour was not exhibited by the full-glacial Nordic ice sheets, coincident with iceberg discharge from the Laurentide Ice Sheet. The dynamics of quaternary ice sheets around the Nordic seas were thus different from the outlet glacier draining the Hudson Bay basin.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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