Steve Smith
stevenjsmith.bsky.social
Steve Smith
@stevenjsmith.bsky.social
Earth-Human Systems Scientist at the Joint Global Change Research Institute (PNNL) and the Center for Global Sustainability (UMD). Canoeist. Singer. Comments are my own. He/him/his.
Reposted by Steve Smith
Please note the ability of Italy in being not green and neither cheaper
July 25, 2025 at 7:02 PM
Our paper comparing a number of top down and bottom up methane emission estimates from China and the US is out!
To improve collaboration between two of the largest methane emitters, the U.S. and China, a new study in Earth's Future evaluated estimates of man-made emissions in both countries to highlight areas of uncertainties and avenues for collaboration: agupubs.onlinelibrary.wiley.com/doi/10.1029/...
June 14, 2025 at 9:52 PM
Nice review paper on cookstoves. Particularly :
" field studies consistently report particle emission factors (PM2.5) higher than the ... under laboratory conditions"
iopscience.iop.org/article/10.1...
Biomass cookstove emissions—a systematic review on aerosol and particle properties of relevance for health, climate, and the environment - IOPscience
Biomass cookstove emissions—a systematic review on aerosol and particle properties of relevance for health, climate, and the environment, García-López, Natxo, Ingabire, Ange Sabine, Bailis, Rob, Eriksson, Axel C, Isaxon, Christina, Boman, Christoffer
iopscience.iop.org
June 3, 2025 at 7:12 PM
Reposted by Steve Smith
Two new Maryland climate working group reports will help guide the state's energy transition and meet its ambitious climate goals, established by Maryland's Climate Solutions Now Act.
Check out the research, supported by CGS and led by the CGS Maryland Program Dir. @kmkennedy6.bsky.social, below:
February 5, 2025 at 8:50 PM
Wow!
The shiniest planet has clouds made of both titanium molecules and silicate, reflecting 80 percent of the light that hits it. 🧪
The Shiniest Planet Has Clouds of Metal and Glass
This exoplanet’s sun should have obliterated its atmosphere. It's still going strong.
nautil.us
January 5, 2025 at 10:40 PM
Reposted by Steve Smith
Congratulations to Phil Jones, climatologist at UEA’s Climatic Research Unit, on being awarded an OBE for his services to climatology
December 30, 2024 at 10:43 PM
Reposted by Steve Smith
Workers who claimed cleaning up a giant TVA coal ash disaster sickened them received a settlement after a decade of litigation. A new book details their struggles.
They Fell Sick After Cleaning Up a TVA Toxic Disaster. A New Book Details Their Legal Battle - Inside Climate News
“Valley So Low” covers a decade-long courtroom drama stemming from the 2008 disaster that helped nudge the EPA into adopting its first national regulations of coal ash.
insideclimatenews.org
December 23, 2024 at 9:27 PM
Last part of my #AGU24 talk on model assumptions for effective injection height (stack height plus plume rise). Assuming emissions are injected into the model surface layer will bias results, sometimes substantially.
December 10, 2024 at 3:46 AM
Slides from my #AGU24 talk describing a new CMIP approach and new air pollutant (a.k.a. SLCF) emissions data.
December 10, 2024 at 3:35 AM
CEDS 0.5° global gridded emissions from 1750-2022 at 0.5° are now available on ESGF.

aims2.llnl.gov/search/input...
[Search for: mip_era = CMIP6Plus; institution_id = PNNL-JGCRI]

These correspond to the v2024_04_01 aggregate emissions data.
ESGF MetaGrid
Web site created using create-react-app
aims2.llnl.gov
December 8, 2024 at 9:23 PM
December 8, 2024 at 8:56 PM