Climate scientist studying aerosols, chemistry, radiation, climate & society from Volcanoes 🌋and Climate Intervention. Assistant Professor at Cornell EAS, from 🇮🇹proudly🏳️‍🌈 More at https://dan-visioni.github.io/ and https://www.wcrp-climate.org/ci-overviewhttps://bsky.app/profile/danvisioni.bsky.socialhttps://bsky.app/profile/danvisioni.bsky.social/post/3mihb6qj2422khttps://iopscience.iop.org/article/10.1088/1748-9326/ae5075/meta Keeping with the theme of the week that seems to be arguing over GWP20 and GWP100, what better week to have our paper out where we say they're both kinda meh and we propose a new one? 😆 @hausfath.bsky.social01 Apr 2026 17:55 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mihb6qj2422khttps://bsky.app/profile/danvisioni.bsky.social/post/3miectik25k2oHappy to report the GWP chat yet again reached the "ah so you're ok if temperatures skyrocket and millions more people die" phase in under 48h. [contains quote post or other embedded content]31 Mar 2026 13:46 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3miectik25k2ohttps://bsky.app/profile/danvisioni.bsky.social/post/3mi5lsfvgps2eGWP20 vs GWP100 discourse on a sunny Saturday afternoon???28 Mar 2026 21:38 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mi5lsfvgps2ehttps://bsky.app/profile/danvisioni.bsky.social/post/3mhqdfrs7bs25Last week we hosted the 16th Annual Workshop of the Geoengineering Model Intercomparison Project (GeoMIP) at the The University of Tokyo. A great success and, as always, a pleasure and honor to represent this community, and to see over 100 participants from all over the world (every continent!)23 Mar 2026 15:03 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mhqdfrs7bs25https://bsky.app/profile/danvisioni.bsky.social/post/3mgthe4o7b22nHow impolite of things to be blooming While the world’s on fire Pointless, defiant, simple beauty In this Economy???12 Mar 2026 03:27 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mgthe4o7b22nhttps://bsky.app/profile/danvisioni.bsky.social/post/3mgftkoz2ac24Just like a brilliant grad student, I guess, in multiple ways! [contains quote post or other embedded content]06 Mar 2026 17:28 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mgftkoz2ac24https://bsky.app/profile/danvisioni.bsky.social/post/3mgddprfzuk2dVery Famous Academic once complained to me he had published a super paper with a super model but no1 was using the underlying data to build upon. When I asked if he knew if data was available, or how others could access it, I just got a blank stare. Your data is useless if you don’t offer support! 🙃 [contains quote post or other embedded content]05 Mar 2026 17:39 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mgddprfzuk2dhttps://bsky.app/profile/danvisioni.bsky.social/post/3mgdc6mmfzc22I have a very different take from many other academics here about publishing. Imo, publishing a paper is more like laying a new brick when building a house than creating a masterpiece painting from scratch. You want something robust, but also something operable on which others can build upon.05 Mar 2026 17:12 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mgdc6mmfzc22https://bsky.app/profile/danvisioni.bsky.social/post/3mgaeswcxdk2dhttps://gmd.copernicus.org/articles/19/1809/2026/ We’ve been working for a few years now on a regional emulator capable of exploring different SRM strategies, capable of expanding the exploration space beyond the small set that Earth System models can provide. It’s here now! Presenting CIDER ➡️04 Mar 2026 13:21 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mgaeswcxdk2dhttps://bsky.app/profile/danvisioni.bsky.social/post/3mfv6u3q2x22lSorry but the moral of the story is that, be you Anthropic, NSF, a Ivy university, a doctor, a cop, doesn’t matter if you do 95% of what these people tell you in the hope you get to save the other 5% of your ethics, or your dignity, or your funding. They’ll steamroll you anyway until full compliance28 Feb 2026 02:35 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mfv6u3q2x22lhttps://bsky.app/profile/danvisioni.bsky.social/post/3mfabys44kc2xIt has warmed my hearth to see we have reached over 200 signatures here :) Thank you to everyone who has put their name down. As this is picking up steam, together with other initiatives, and with some UCAR representatives, we're trying to make sure this reaches the general public, congress & NSF. [contains quote post or other embedded content]19 Feb 2026 19:05 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mfabys44kc2xhttps://bsky.app/profile/danvisioni.bsky.social/post/3meyazm2ark22We already have over 40 signatures from US researchers and professors supporting NSF-NCAR and telling NSF to maintain control of the NCAR-Wyoming Supercomputer with NCAR! Do sign and share. [contains quote post or other embedded content]16 Feb 2026 14:26 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3meyazm2ark22https://bsky.app/profile/danvisioni.bsky.social/post/3merc5vmgnk2zhttps://docs.google.com/document/d/18CAKcwWEdEyN4LRc716XVHVEJwcuIvSvehDGp8eWZPk/edit?tab=t.0 Hey folks, tried putting together a letter in direct response to the NSF unprompted decision. Feel free to offer suggestion or to add your name as a signatory, and thanks to those that did it alredy! Current text follows (errors all mine!)... [contains quote post or other embedded content]13 Feb 2026 19:58 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3merc5vmgnk2zhttps://bsky.app/profile/danvisioni.bsky.social/post/3meqsd5l25224Trying to put together a quick response to the announcement. Can folks (mainly US profs/researchers at this point) reach out if interested to chime in/join? Can share link to draft. [contains quote post or other embedded content]13 Feb 2026 15:15 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3meqsd5l25224https://bsky.app/profile/danvisioni.bsky.social/post/3meqkxk32uk2oWhat changed after the repeal of the Endangerment Findings? Nothing, physics is still physics, CO₂ is a greenhouse gas, the rapid warming its increase produces is dangerous for our capacity to thrive on this 🌏 , burning coal is still bad for your lungs, this Administration is still full of twats.13 Feb 2026 13:03 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3meqkxk32uk2ohttps://bsky.app/profile/danvisioni.bsky.social/post/3mepmah2zc22ohttps://www.nsf.gov/news/transitioning-ncar-wyoming-supercomputing-center-operations I wish I had a good read on this, but I don’t and neither does anyone else right now. Definitely not good, but not clear how bad and how fast things could change now. Still time to respond to the DCL and say NCAR must stay together. If not for NCAR’s sake, for yours…13 Feb 2026 03:53 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mepmah2zc22ohttps://bsky.app/profile/danvisioni.bsky.social/post/3mem5pnun5c27I objectively can’t find anything more nuanced than this sorry journalist friends11 Feb 2026 18:55 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mem5pnun5c27https://bsky.app/profile/danvisioni.bsky.social/post/3mem5pnun5c27I objectively can’t find anything more nuanced than this sorry journalist friends11 Feb 2026 18:55 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mem5pnun5c27https://bsky.app/profile/danvisioni.bsky.social/post/3mef6ygy2g225Wonderful spending seven full days at one of the places I hold most dear in my heart, #NCAR, for three different workshops (two CESM winter meetings, one I help manage as co-chair of the Whole Atmosphere Working Group, and a mid-project meeting with the Planetary Sunshade Foundation)…09 Feb 2026 00:29 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mef6ygy2g225https://bsky.app/profile/danvisioni.bsky.social/post/3mef6ygy2g225Wonderful spending seven full days at one of the places I hold most dear in my heart, #NCAR, for three different workshops (two CESM winter meetings, one I help manage as co-chair of the Whole Atmosphere Working Group, and a mid-project meeting with the Planetary Sunshade Foundation)…09 Feb 2026 00:29 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mef6ygy2g225https://bsky.app/profile/danvisioni.bsky.social/post/3mef3lys5o225Who the guy singing the anthem and can I get his number.08 Feb 2026 23:29 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mef3lys5o225https://bsky.app/profile/danvisioni.bsky.social/post/3mdqup5i2es2hAs a scientist one encounters many challenges, some of them related to “shall I talk to this person or nah” but honestly “not canoodling with a known pedo for a few bucks” is easier than it sounds.31 Jan 2026 22:32 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mdqup5i2es2hhttps://bsky.app/profile/danvisioni.bsky.social/post/3mdjqdzzc2s2jFellas, at which point of the timeline are we when the vanilla hot gay couples on Facebook with normally just cheesy shirtless reels uses poly to bait you into abolishing ICE?29 Jan 2026 02:26 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mdjqdzzc2s2jhttps://bsky.app/profile/danvisioni.bsky.social/post/3mdgat4dgwc2kWe have a new paper out today, looking more in detail at the potential air quality impacts of Stratospheric Aerosol Injections, finding them more driven by climatic feedbacks than by deposition. This is the 1st questions one receives when discussing this, so really important to explore in depth! https://acp.copernicus.org/articles/26/1339/2026/27 Jan 2026 17:10 +0000at://did:plc:pb3usxus2iaboedam5nmxpfp/app.bsky.feed.post/3mdgat4dgwc2k