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
That's a particularly large difference for advanced cookstoves.
June 3, 2025 at 7:14 PM
"for example, an average of 8.9 g/kgfuel (field) compared to 5.2 g/kgfuel (lab) for traditional cookstoves and 4.0 g/kgfuel (field) compared to 1.3 g/kgfuel (lab) for advanced cookstoves"
June 3, 2025 at 7:13 PM
But it would be similar for
electric generation since the largest part of electricity is coal.
April 11, 2025 at 9:51 AM
The most parsimonious solution is to get carbon monitor to use this. Seems like they should
April 10, 2025 at 11:57 PM
Gridded emissions out to 2023 are already up at ESGF. note that a user found a discontinuity in the seasonal cycle for 2023. So we are replacing the data to fix that. Other years are not impacted.
April 9, 2025 at 11:19 PM
Change in Hydro looks to be about the right magnitude to offset the seasonal change in goal.

Note that renewables are about the same order of magnitude Hydro, and will also have seasonal patterns.
April 9, 2025 at 11:17 PM
Yes, we could use that. There is seasonality in latest CEDS, but it’s small and inconsistent from year to year.

I note that the signal you show not that large. That might be overwhelmed by seasonality in atmospheric chemistry and transport.

But still worth improving the emissions, of course.
April 9, 2025 at 11:14 PM
I haven’t noticed anything missing from EIA. Any specifics.
February 8, 2025 at 4:29 AM
2/2 so it’s really about truth in marketing and accountability - which is not generally present.

The culture tends to perpetuate that the academic route is the only true “success”, and that’s a problem.

That doesn’t excuse the overuse of postdocs as cheap labor with no stable career path.
January 26, 2025 at 4:28 PM
1/2 This “leave academia“ or even “leave science” wording is counterproductive.

The system is set up to overproduce postdocs, the incentives for that haven’t changed. So this shouldn’t surprise anyone.

It’s not ness a bad thing if not all are doing research, PhD’s are useful in other places.
January 26, 2025 at 4:25 PM
Sorry to hear this very sad news.
January 25, 2025 at 11:39 AM
He’s talking about a different sort of aerosols - small particles in the atmosphere (such as formed by sulfur dioxide emissions ) that reflect sunlight back into space.
January 8, 2025 at 1:49 PM
Our paper last year demonstrating the importance of the assumed SO2 injection height.
egusphere.copernicus.org/preprints/20...
EGUsphere - The Emissions Model Intercomparison Project (Emissions-MIP): quantifying model sensitivity to emission characteristics
egusphere.copernicus.org
December 10, 2024 at 12:29 PM
Note that, particularly for industrial (not power plant) sources, the emission height will vary even more widely - from substantial emissions at the surface to emissions from some sources that loft higher than power plants. This will also vary by emission species.
December 10, 2024 at 3:46 AM
The community needs to consider how emission height information should be provided to modelers.
December 10, 2024 at 3:46 AM
While models can't incorporate this new information in time for CMIP7 fast track simulations, the implications of this new information should be evaluated in parallel.
December 10, 2024 at 3:46 AM
While the weighted average regional height distribution varies somewhat by region, the emissions height is higher than the AeroCOM assumptions used by many modelers.
December 10, 2024 at 3:46 AM