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Reposted by Abby S. Knapp

Dr. K. Lotterhos @drk-lo.bsky.social · 13/07/2026

OUR WORK IS NOT DONE. In unusual move, NSF issued a request for information on plan to conform grant policies to the proposed (unfinalized) OMB rule. Plan includes changes to grant termination provisions & disallowing publication costs. Comments due August 24. www.federalregister.gov/documents/20...

federalregister.gov

Agency Information Collection Activities: Comment Request; National Science Foundation Proposal/Award Information-NSF Guidance on Financial Assistance

The U.S. National Science Foundation (NSF) is announcing plans to renew and revise its collection for its financial assistance policies and procedures. In accordance with the requirements of the Paper...

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Abby S. Knapp @askgeo.bsky.social · 12/06/2026

Main-Stream Media: Good news about rivers straight to your feed! In this month's good news, Denmark has announced a reduction in the drinking limit of nitrate from 50 to 6 mg/L as nitrate. (1/4) www.greenpeace.org/eu-unit/issu... #main-stream-media #rivers #good-news #nitrate

greenpeace.org

In EU first, Denmark plans to cut nitrate limit in drinking water to reduce cancer risk - Greenpeace European Unit

The new Danish government plans to lower the level of nitrate in drinking water, which mainly comes from agricultural sources and is linked to colorectal and bowel cancer risk

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Abby S. Knapp @askgeo.bsky.social · 12/06/2026

This group took a wonderful approach to modeling nitrate in a catchment by integrating isotope tracers and connecting the hydrologic and biogeochemistry along different flow paths. (1/3) #hydrology #biogeochemistry #nitrate-model #catchment #wetlands

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Abby S. Knapp @askgeo.bsky.social · 13/05/2026

How does changing mountain hydrology (shrinking snowpacks and earlier snowmelt) affect silicate rock weathering and stream chemistry? Check out our work: doi.org/10.1002/hyp.... #SilicateWeathering #Snowpack #WaterQuality #Catchments #WaterQualityModeling

Graphical abstract describes the findings of our study. Two images of the Sagehen catchment show the comparison between the hydrology and geochemistry in the driest and wettest years. In the driest year, there is less snowpack, lower streamflow, less flow through the shallow subsurface compared with the deeper subsurface. Bar charts show that in the drier year, the rock weathering rates were about half those in wetter years, and export is about one third. The text reads: "In drier, lower-snow years, silicate weathering rates are lower, geogenic solute export is lower, but stream solute concentrations are higher."

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Abby S. Knapp @askgeo.bsky.social · 03/12/2024

I'm looking forward to meeting fellow catchment-interested scientists at AGU. Come see my poster on Friday morning, in session H51O (Poster Hall B-C)! #AGU #AGU2024 #earthscience #snowpack #weathering #hydrogeology #biogeochemistry

An illustration of a mountainous watershed or catchment with water flowing through the subsurface from melting snowpack. The water is shown in a close-up to be carrying dissolved Calcium cations to the stream.

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