David Appell
@davidappell.bsky.social
I'm a freelance science writer. I'm good friends, and maintainer, with a cool cat I named Oliver. I love to read words and I love to work with numbers too. http://www.davidappell.com
He can’t even understand a graph.
November 18, 2025 at 2:51 AM
He can’t even understand a graph.
On Sunday night the NY Rangers vs Detroit Red Wings reenacted the Battle of Agincourt, because a Red Wing shot the puck into the Ranger empty net a fraction of a second after the final horn. Not an acceptable act in hockey cuture.
November 18, 2025 at 1:23 AM
On Sunday night the NY Rangers vs Detroit Red Wings reenacted the Battle of Agincourt, because a Red Wing shot the puck into the Ranger empty net a fraction of a second after the final horn. Not an acceptable act in hockey cuture.
Monthly GISS v4 anonalies for GMST, via data.giss.nasa.gov/gistemp/grap...
November 17, 2025 at 7:50 PM
Monthly GISS v4 anonalies for GMST, via data.giss.nasa.gov/gistemp/grap...
If Trump is really {boo, hiss} going to shut down the Mauna Loa CO2/CH4 daily measurements and ruin the continuity of the Keeling curve, some billionaire should donate whatever is necessary to keep it going and pay the scientist to do that work (equipment+data). Maybe $250 K/yr at most?
October 15, 2025 at 7:56 PM
If Trump is really {boo, hiss} going to shut down the Mauna Loa CO2/CH4 daily measurements and ruin the continuity of the Keeling curve, some billionaire should donate whatever is necessary to keep it going and pay the scientist to do that work (equipment+data). Maybe $250 K/yr at most?
Why, once you start geoengineering you [probably] can never stop. And it's a moral hazard.
davidappell.blogspot.com/2013/12/why-...
davidappell.blogspot.com/2013/12/why-...
September 22, 2025 at 5:09 PM
Why, once you start geoengineering you [probably] can never stop. And it's a moral hazard.
davidappell.blogspot.com/2013/12/why-...
davidappell.blogspot.com/2013/12/why-...
The problem with SRM is that once you start it you can't stop, because stopping means temperatures will quickly (~decades) rise to what they would have been anyway.
davidappell.blogspot.com/2013/12/why-...
davidappell.blogspot.com/2013/12/why-...
September 22, 2025 at 5:04 PM
The problem with SRM is that once you start it you can't stop, because stopping means temperatures will quickly (~decades) rise to what they would have been anyway.
davidappell.blogspot.com/2013/12/why-...
davidappell.blogspot.com/2013/12/why-...
The average Arctic sea ice thickness for August 2025 is a record low among Augusts since 1979. <thickness>=volume/area, via PIOMAS and NSIDC.
September 12, 2025 at 8:24 PM
The average Arctic sea ice thickness for August 2025 is a record low among Augusts since 1979. <thickness>=volume/area, via PIOMAS and NSIDC.
The military is glorifying a traitor to the country. Whats next, statues in town centers??
August 28, 2025 at 6:40 PM
The military is glorifying a traitor to the country. Whats next, statues in town centers??
Over the last 20.0 years, sea level in Virginia Key, Florida--about 5 km off the coast of Miami--has been rising an average of 1 inch every 35 months. (avg SLR=8.7 mm/yr.)
May 5, 2025 at 7:30 PM
Over the last 20.0 years, sea level in Virginia Key, Florida--about 5 km off the coast of Miami--has been rising an average of 1 inch every 35 months. (avg SLR=8.7 mm/yr.)
Tony Blair: carbon capture isn’t nearly enough. From @climatebook.bsky.social
April 30, 2025 at 2:33 PM
Tony Blair: carbon capture isn’t nearly enough. From @climatebook.bsky.social
Here's a beautiful chart from Luke Skinner in Science in 2012: Earth's climate sensitivity S as discerned from many climate events in the past. It gives S=2.6 C, on the low end of the range (2.5-4.0 C) from climate models (IPCC 6AR):
davidappell.blogspot.com/2025/04/clim...
davidappell.blogspot.com/2025/04/clim...
April 19, 2025 at 8:20 PM
Here's a beautiful chart from Luke Skinner in Science in 2012: Earth's climate sensitivity S as discerned from many climate events in the past. It gives S=2.6 C, on the low end of the range (2.5-4.0 C) from climate models (IPCC 6AR):
davidappell.blogspot.com/2025/04/clim...
davidappell.blogspot.com/2025/04/clim...
