Dec 20, 2013
Global warming and changes in drought
by
,
Nature Climate Change
- Assesses issues with the the formulation of the Palmer Drought Severity Index (PDSI) and the data sets used to determine the evapotranspiration component
- States that changes in the global water cycle in response to the warming will not be uniform
- States the contrast in precipitation between wet and dry regions and between wet and dry seasons will probably increase, although there may be regional exceptions
- States climate change may not manufacture droughts, but it could exacerbate them and it will probably expand their domain in the subtropical dry zone