Sunday, January 31, 2010

Wild Card

Water vapor in the lower stratosphere plays an important role in the radiative balance of the atmosphere. This excellent paper by Solomon et al. (2010) reports on recent trends and changes in stratospheric water vapor levels and the relationship between water in the stratosphere and surface temperature. The processes that determine stratospheric water vapor levels, including rockets and aircraft combustion emissions, are poorly understood and so water vapor could be a climate change wild card.

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