There is an excellent powerpoint presentation by Dev Niyogi of Purdue University at the 15th Annual LCLUC Science Team Meeting, March 28-30th 2011 at the University of Maryland. It is
The question he poses is
“Is there a detectable relation between LULCC as a driver for weather and climate change – and what is needed to understand this further?
The entire set of viewgraphs is a valuable addition to our understanding of the role of land cover/land use change [LCLUC] within the climate system. Dev’s insightful conclusions from his talk are:
- LULCC has a profound impact on the regional‐scale surface energy and water balance and where it has been intensive.
- Growing detectable evidence about weather and climatic feedbacks and possible teleconnections associated with LULCC.
- The LULCC impact is likely on a par with other major global forcings but unlike warming seen from GHG emissions , LULCC forcing is multi directional and can warm/ cool, cause positive/negative feedbacks depending on the region and timing.
- The fact that the impact of LULCC is small with respect to the global average radiative forcing, with the exception of emissions of CO2, is, however, not a relevant metric as the essential resources of food, water, energy, human health and ecosystem function respond to regional and local climate not to a global average.
Without a complete assessment of the role of LULCC on climate, an incomplete understanding of the of humans in the climate system will persist.”