CHRIS POULSEN, Professor of Earth and Environmental Sciences

Chris is a climate scientist, who studies Earth's past and future climate change using both theoretical (climate models) and observational methods. He is interested in what the past can reveal about how the climate system works and how the modern climate system is changing. He has published on climate topics including snowball Earth dynamics, extreme greenhouse climates, mountain-uplift induced climate change, ice-age cycles, and plant physiological forcing of past and future climate.
Chris grew up in southwestern Montana. After graduating from Carleton College in Minnesota, he earned a PhD from the Pennsylvania State University followed by a post-doc at the University of Chicago. He landed at the University of Michigan in 2003, where he is now a Professor. Chris has not forgotten his roots, and returns to Big Sky country every summer to teach at UM's Camp Davis near Jackson, Wyoming. View Chris' curriculum vitae.
Chris grew up in southwestern Montana. After graduating from Carleton College in Minnesota, he earned a PhD from the Pennsylvania State University followed by a post-doc at the University of Chicago. He landed at the University of Michigan in 2003, where he is now a Professor. Chris has not forgotten his roots, and returns to Big Sky country every summer to teach at UM's Camp Davis near Jackson, Wyoming. View Chris' curriculum vitae.
PAUL ACOSTA, Research Fellow

Paul is an Earth science buff and pretty much an enthusiast for any type of science. In particular, he is curious about the interactions between the mountains and the atmosphere. Currently, he is using physics-based, global climate models to better quantify the ancient elevation of various planetary-scale mountain ranges such as the Andes and Tibetan Plateau during the Cenozoic era.
Paul is a California native, he got his B.S. in Geology and Environmental Science from UC Santa Cruz. His doctoral work has allowed him to travel to the Northeast (University of New Hampshire) and the Midwest (Purdue University), where he worked on understanding future climate change in the greater New England region and modern dynamics of the Indo-Asian monsoon. On his spare time, Paul enjoys outdoor activities, such as climbing, white water kayaking, or backpacking.
Paul is a California native, he got his B.S. in Geology and Environmental Science from UC Santa Cruz. His doctoral work has allowed him to travel to the Northeast (University of New Hampshire) and the Midwest (Purdue University), where he worked on understanding future climate change in the greater New England region and modern dynamics of the Indo-Asian monsoon. On his spare time, Paul enjoys outdoor activities, such as climbing, white water kayaking, or backpacking.
PHOEBE ARON, Research Fellow

Phoebe uses water isotopes as tracers of hydrologic processes. She studies large-scale hydrologic dynamics of modern and paleoclimate in the Peruvian Andes and small-scale water use in the forests at the UM Biological Station.
Phoebe grew up outside of Washington DC and studied chemistry and environmental science at Bowdoin College in Brunswick, Maine. Outside of work she enjoys ultimate frisbee, backpacking, distance cycling, and jigsaw puzzles.
Phoebe grew up outside of Washington DC and studied chemistry and environmental science at Bowdoin College in Brunswick, Maine. Outside of work she enjoys ultimate frisbee, backpacking, distance cycling, and jigsaw puzzles.
JEREMY KEELER, PhD Candidate

Jeremy studies ancient extreme climates to better understand modern climate change. His tool of choice? Advanced computer programs running on supercomputers. Currently, he is using general circulation models to investigate the Paleocene-Eocene Thermal Maximum, considered to be one of the best analogs for future global warming. He is broadly interested in how such time periods came about, their effects on climate dynamics, and how they are preserved in paleoclimate proxies.
Jeremy is originally from Delaware where he earned a B.S. in Geological Science and a B.S. in Environmental Science from the University of Delaware. After his undergraduate studies Jeremy was a software engineer in New York City. Most recently, he was a senior software engineer at the financial tech company, Affirm. On the side, Jeremy enjoys backpacking, running, and creating web applications.
Jeremy is originally from Delaware where he earned a B.S. in Geological Science and a B.S. in Environmental Science from the University of Delaware. After his undergraduate studies Jeremy was a software engineer in New York City. Most recently, he was a senior software engineer at the financial tech company, Affirm. On the side, Jeremy enjoys backpacking, running, and creating web applications.
SOPHIA MACAREWICH, PhD Pre-Candidate

Sophia is interested in past extreme warming events, particularly the Paleocene-Eocene Thermal Maximum, as it is argued to be the best paleoclimate analogue of modern climate change. She would like to better understand what climatic mechanisms are responsible for sustaining such high temperatures, as well as the associated environmental changes that occurred during the early Eocene.
Sophia grew up on the West Coast between Los Angeles and San Diego, and then moved up the coast to study Physical Geography and Environmental Science at UC Santa Barbara. In her free time, she enjoys camping, drawing, baking, and doing yoga.
Sophia grew up on the West Coast between Los Angeles and San Diego, and then moved up the coast to study Physical Geography and Environmental Science at UC Santa Barbara. In her free time, she enjoys camping, drawing, baking, and doing yoga.
ALEX THOMPSON, PhD Pre-Candidate

Alex aims to study how climate changes lead to alterations in the hydrologic system and put stress on the natural and human world. By exploring Holocene climates, he intends to investigate similarities between recent paleoclimate and future climate change. Both tropical African and South American climates are of interest to Alex.
Alex grew up in Dexter, MI and earned a double major from the University of Michigan in Earth and Environmental Science and Environmental Studies. In between undergraduate and graduate studies, he worked in environmental data management consulting at Industrial Economics, Inc. in Cambridge, MA. Alex enjoys outdoor adventure and playing musical instruments, such as the ukulele, drums, and more.
Alex grew up in Dexter, MI and earned a double major from the University of Michigan in Earth and Environmental Science and Environmental Studies. In between undergraduate and graduate studies, he worked in environmental data management consulting at Industrial Economics, Inc. in Cambridge, MA. Alex enjoys outdoor adventure and playing musical instruments, such as the ukulele, drums, and more.