Lmst

Integrating Characteristic Arctic Vegetation In A Land Surface Model Improves Representation Of Carbon Dynamics Across A Tundra Landscape
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https://doi.org/10.1029/2025JG009039 <-- shared paper
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[ https://doi.org/10.3390/land14091839 <-- shared paper ]
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#tundra #arctic #vegetation #spatialanalysis #arcticwarming #warming #climate #carbon #carbonsink #carbonsource #carbondynamics #carboncycle #EnergyExascale #earthsystemmodels #ESM #model #modeling #plant #functional #PFT #Alaska #Seward #Peninsula #casestudy #biomass #ecosystem #remotesensing #scaling #drone #aircraft #insitu #GIS #spatial #sampling #earthsystem

Australia's rainforests are the first to switch from carbon sink to carbon source, study warns

The trunks and branches of trees in Australia's tropical rainforests—also known as woody biomass—have become a net source of carbon dioxide to the atmosphere, according to a new international study.

According to the team behind the Nature study, which includes experts from The Australian National University (ANU), Australia's wet tropics are the first globally to show this response to climate change. The rising temperature, air dryness and droughts caused by human-driven climate change are likely the major culprits.

#Rainforest #Australia #carbonsink #carbonsource #drought

https://phys.org/news/2025-10-australia-rainforests-carbon-source.html

What is the role of extracellular polymeric substances (EPS) in carbon exchange among microbial species? This study shows that #EPS, formed via #chitin degradation, drives #MicrobialDiversity by acting as a sequentially degraded #CarbonSource @PLOSBiology https://plos.io/3J9kbuu

Graphical illustration of how EPS is enzymatically degraded in multiple steps into smaller fragments, fueling the growth of non-degrading species: EPS degraders break down EPS into larger oligomers for oligomer consumers; further degradation into monomers and small oligomers supports non-degrading consumers.

#FYI #PaulBeckwith video lecture and literature review

"Instead of being a strong sink of carbon, pulling vast amounts of CO2 out of the atmosphere, a large chunk of the Arctic region is no longer doing this. Instead, it has become a source of carbon (CO2) which is very concerning."

https://www.youtube.com/watch?v=QE8waSYHFL4

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #CarbonSink #CarbonSource #Arctic #BorealRegion