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Jim Randerson

@jimranderson.bsky.social

Professor in the Department of Earth System Science at UC Irvine. Interests include climate, the global carbon cycle, wildfires, remote sensing, modeling, and machine learning.

Posts Replies Media

Jim Randerson @jimranderson.bsky.social · 10/09/2025

www.science.org/doi/10.1126/...

science.org

The weak land carbon sink hypothesis

Satellite-derived time series of vegetation carbon do not support a strong Northern Hemisphere net land carbon sink.

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Jim Randerson @jimranderson.bsky.social · 10/09/2025

I'm happy to share a paper in Science Advances that makes the case for a weak land carbon sink, drawing upon JPL and Chloris biomass time series. To close the budget with a net land sink of 0.8 Pg C/y from 2000-2019, we propose increases in the ocean sink and decreases in fossil fuel emissions.

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Jim Randerson @jimranderson.bsky.social · 11/12/2024

Hah! These papers are great! We just explored the opposite relationship: fire before drought confers drought resilience in conifers (less drought-induced tree mortality). doi.org/10.1016/j.fo... I guess these results together mean the system won't get out of control ...

doi.org

Redirecting

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Jim Randerson @jimranderson.bsky.social · 06/12/2024

Thanks Jeff!

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