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Caltech

Earth Week Speaker Series

Tuesday, April 18, 2017
12:00pm to 1:30pm
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Winnett Lounge
The Fate of the Terrestrial Biosphere Under a Changing Climate
Joshua Fisher, Climate Scientist at NASA's Jet Propulsion Laboratory, the Science Lead of the ECOSTRESS Mission,

One of the largest uncertainties in projections of future climate change is the role of terrestrial ecosystems in contributing to or mediating the rise in atmospheric CO2. This is because terrestrial ecosystems can act both as carbon sinks (i.e., photosynthesis, net primary production) and also as carbon sources (i.e., respiration, decomposition, combustion). The reasons tipping the source/sink balance depend on conditions, sensitivities, thresholds, and projections of temperature, moisture, nutrients, disturbance, and adaptation. At NASA's Jet Propulsion Laboratory (JPL), we are working on understanding these feedbacks and impacts through satellite remote sensing and land surface modeling across carbon, water, and nutrient cycles. In this talk, Dr. Fisher will give an overview of the latest remote sensing datasets and model developments from JPL, and discuss new insights into the behavior and understanding of terrestrial ecosystems in a changing climate.

The talk will end at 1pm and will be followed by an informal conversation with the speaker until 1:30pm.

Lunch provided - come promptly. All members of the community are welcome to attend.

For more information or to explore other Earth Week 2017 events visit earthday.caltech.edu.

For more information, please contact Heidi Rusina by phone at x5956 or by email at [email protected] or visit Earth Week 2017.