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International Space Science Institute (ISSI)Hallerstrasse 6
3012 Bern
Switzerland

Phone +41 31 684 48 96
Email issi@issibern.ch

Our scientific opportunities support the community through six distinct modes of operation. Links to proposal templates or on-line submission forms are provided for each individual tool.

Find explanations, forms of applications and an overview of current and past activities.

Johannes Geiss Fellowship 2025

Current Fellow

ISSI Johannes Geiss Fellow 2025 Benjamin Poulter.

Current Fellow

Benjamin Poulter is a distinguished climate scientist at the forefront of biospheric and remote sensing research. He is currently a Research Scientist at the NASA Goddard Space Flight Center and an Adjunct Associate Research Professor at the University of Maryland, having recently ended a secondment as Deputy Director for Greenhouse Gas Measurements and Monitoring at the White House Office of Science and Technology Policy. With a Ph.D. from Duke University (2005), Dr. Poulter brings over two decades of international research experience, including key roles at institutions such as the Swiss Federal Research Institute WSL, the Potsdam Institute for Climate Impact Research and the Laboratory for Climate and Environmental Sciences (LSCE). His work at NASA includes developing land-surface models to address key climate and biodiversity questions, as well as to support new satellite missions such as the Surface Biology and Geology mission (SBG), new greenhouse-gas satellite concepts and large-scale field campaigns using tiered measurement approaches (i.e., ARID and BlueFlux). He has earned numerous accolades, including the 2024 NASA Robert H. Goddard Award for Science for his scientific publications and contributions to the Intergovernmental Panel on Climate Change.

A Spiral Amongst Thousands
Credits ESA/Webb, NASA & CSA, A. Martel