Allen’s research interests are climate variability, land-atmosphere interaction, atmospheric aerosols/short-lived pollutants, and large-scale climate dynamics. He has studied extensively the role of snow and soil moisture anomalies in forcing trends in, and multi- annual persistence of, the dominant mode of Northern Hemisphere atmospheric variability.
Allen earned his Ph.D. from Yale University in 2009.
On Climate Change
Allen can speak on a variety of topics pertaining to climate change, including:
- How the climate is changing and what is driving that change;
- How to adapt to and mitigate climate change;
- The effects of anthropogenic aerosol forcing on climate (e.g. Arctic warming associated with sea-ice loss.).
He can also speak on the technological side, with an emphasis on climate modeling. These topics include
- How climate models can help improve our understanding of climate change;
- How climate models make predictions of future climate change.