Earth Institute Research Projects

EaSM-3 Collaborative Research: Local and Remote Regional Climate Responses to Regional Forcings from Short-Lived Climate Forcers

Lead PI: Arlene Fiore

Unit Affiliation: Ocean & Climate Physics, Lamont-Doherty Earth Observatory (LDEO)

October 2014 - September 2020
Project Type: Research

DESCRIPTION: The goal of this collaborative project is to examine local and remote climate impacts of regional emission perturbations to aerosol or precursor emissions (sulfur dioxide, black carbon and organic carbon, together and separately), which are regulated for public health reasons under air pollution policy in many world regions and can induce regional and global climate changes over the next several decades. We aim to advance understanding of the magnitude, spatial pattern and statistical significance of local and remote climatic reponses to changes in regional emissions of aerosols and precursors. Knowledge generated through this study can inform the climate assessment community.


National Science Foundation (NSF)




Dan Westervelt


Duke University National Center for Atmospheric Research



Conley, A. J., D. Westervelt, J.-F. Lamarque, A. M. Fiore, D. Shindell, G. Correa, G. Faluvegi, L.W. Horowitz. Multi-model surface temperature responses to removal of U.S. sulfur dioxide emissions. J. Geophys. Res., 123, 2773–2796,, 2018.

Westervelt, D.M., A.J. Conley, A.M. Fiore, J.-F. Lamarque, D. Shindell, M. Previdi, G. Faluvegi, G. Correa, L.W. Horowitz, Multi-model precipitation responses to removal of U.S. sulfur dioxide emissions. J. Geophys. Res., 122, 5024–5038, doi:10.1002/2017JD026756, 2017.

Westervelt, D. M., Conley, A. J., Fiore, A. M., Lamarque, J.-F., Shindell, D. T., Previdi, M., Mascioli, N. R., Faluvegi, G., Correa, G., and Horowitz, L. W.: Connecting regional aerosol emissions reductions to local and remote precipitation responses, Atmos. Chem. Phys. Discuss.,, in press, 2018.

Ph.D. thesis (also supported by U.S. EPA):
Mascioli, Nora Rose, 2018, Impacts of anthropogenic aerosols on regional climate:
extreme events, stagnation, and the United States warming hole, Columbia University Academic Commons,


aerosols earth system model short lived climate forcers


Modeling and Adapting to Future Climate