A41R-03 – Impact of land use and land cover change on climate and air quality in the CESM (Invited)

Authors

Natalie Mahowald
Cornell University
Daniel Ward
Cornell University
Silvia Kloster
Max Planck Institute for Meteorology
James Randerson
University of California Irvine
Scott Doney
Woods Hole Oceanographic Institute
Keith Lindsay
National Center for Atmospheric Research
Ernesto Muñoz
National Center for Atmospheric Research
Sarah Schlunegger
Princeton University
Danica Lombardozzi
National Center for Atmospheric Research
David Lawrence
National Center for Atmospheric Research
Peter Lawrence
National Center for Atmospheric Research
Forrest Hoffman (forrest at climatemodeling dot org)
Oak Ridge National Laboratory

Session

Tropospheric Chemistry-Climate-Biosphere Interactions I
Thursday, December 17, 2015 08:30–08:45
Moscone West 3008

Abstract

Land use and land cover change (LULCC) impacts climate by directly emiting CO2 as well as modifying indirect CO2 sinks in the future. LULCC also modifies aerosol and reactive gas emissions, modifying ozone and methane lifetimes, as well as directly emitting methane and nitrous oxide. Finally, LULCC modifies land albedos. Here we consider multiple land use scenarios within the context of the CESM, and the net impact of LULCC on climate and compare to other anthropogenic forcings. These comparisons suggest that LULCC contributes 40% to climate change today, and out to 2100. The contribution from LULCC varies strongly by country and when the land use conversion occurs.


Forrest M. Hoffman (forrest at climatemodeling dot org)