Re: [geo] Re: [CDR] Re: [HCA-list] Iron Salt Aerosol: Article in MIT Technology Review

DioxideRemoval/CAEr4H2nDV%2BvPXnOFK3wJ5Kvn_hzZQwgLk%3DbJqMUXRXioygR%3DDQ%40mail.gmail.com > <https://groups.google.com/d/msgid/CarbonDioxideRemoval/CAEr4H2nDV%2BvPXnOFK3wJ5Kvn_hzZQwgLk%3DbJqMUXRXioygR%3DDQ%40mail.gmail.com?utm_medium=email_source=footer> > . > > -- > You receiv

[geo] Fwd: [preview] Yes, nuclear winter is back and more unnerving than ever. Please pass this along.

War, scientists found fires from a nuclear war could loft so much smoke high into the rainless stratosphere that solar dimming could spawn famine. Lately, the science has strengthened. Andrew Revkin Mar 04 *Please **SUBSCRIBE <https://revkin.bulletin.com/subscribe>** to receive my posts by

[geo] Fwd: As Western Pressure Builds, Putin's Nuclear Threat is Easy to Overplay or Write Off, But Can't be Ig...

war, I can't believe I have to revisit this. But such is the nature of these times. Andrew Revkin Mar 02 *Please **SUBSCRIBE <https://revkin.bulletin.com/subscribe>* to receive my posts by email (content always free so no one is left out). Spread word to friends by sending an email here . Join my live Sus

Re: [geo] IPCC AR6 WG2 - Climate Change 2022: Impacts, Adaptation and Vulnerability

..@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/geoengineering/CAHodn982odrbvYsxqhvZjzHySfouEa1wbu6DyuyV3jXwLeW7nw%40mail.gmail.com > <https://groups.google.com/d/msgid/geoengineering/CAHodn982odrbvYsxqhvZjzHySfouEa1wbu6DyuyV3jXwLeW7nw%40mail.gmail.com?utm_medium=email_source=foot

Re: [geo] Senior scholars?

it > https://groups.google.com/d/msgid/geoengineering/033601d80f3d%241ef64f70%245ce2ee50%24%40yahoo.com.au > <https://groups.google.com/d/msgid/geoengineering/033601d80f3d%241ef64f70%245ce2ee50%24%40yahoo.com.au?utm_medium=email_source=footer> > . > > -- > You received this me

Re: [geo] Al Gore: climate engineering research reckless and wack-a-doodle

-4e6a-ba89-94d2a44f1530o%40googlegroups.com > <https://groups.google.com/d/msgid/geoengineering/14cbe067-e266-4e6a-ba89-94d2a44f1530o%40googlegroups.com?utm_medium=email_source=footer> > . > -- *ANDREW REVKIN* *Founding Director, Initiative on Communication & Sustainability*

Re: [geo] No fossil fuels = global warming stops “soon”

. > To view this discussion on the web visit > https://groups.google.com/d/msgid/geoengineering/3A79B8CB-E38D-422D-957A-F1A4D5527854%40exchange.asu.edu > <https://groups.google.com/d/msgid/geoengineering/3A79B8CB-E38D-422D-957A-F1A4D5527854%40exchange.asu.edu?utm_medium=email_sour

Re: [geo] My CNN geoengineering question to Sen. Cory Booker

message because you are subscribed to the Google Groups > "geoengineering" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to geoengineering+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.co

Re: [CDR] Re: [geo] A Critical Examination of Geoengineering. Economic and Technological Rationality in Social Context

On Peter's wise input, one other thought. In ecosystems, there's some evidence that a lack of true "organization" - meaning coordination, consistency - appears to be a source of resilience. As Thomas Elmqvist captured as "response diversity"

Re: [geo] Help: What do we know and what don't we know about solar geoengineering?

the question isn't just "who decides." It's also who decides how to decide. - Andy [image: --] Andrew Revkin [image: https://]about.me/revkin <https://about.me/revkin?promo=email_sig_source=product_medium=email_sig_campaign=chrome_ext> On Wed, Jul 19, 2017 at 10:47 AM, Ken C

Re: [geo] Open-Access Review paper: Gas Hydrate Breakdown Unlikely to Cause Massive Greenhouse Gas Release

But isn't the prime question - at least the one driving most discussions of "emergency" actions up north - catastrophic release? Pretty clear this review damps down that concern, along with the papers last year pointing to post-2010 methane concentration rise being mainly tropical/biogenic.

Re: [geo] Nordhaus: Devastating global warming is inevitable

The most important thing about Nordhaus's paper and conclusions, which I focused on in a recent Trump piece , is that he once held fast to the same assumptions Mann's hanging on to. He's

[geo] the political context on clarifying social cost of carbon

Seeing the helpful discussion emerge on the new National Academies report on ways to improve the "social cost of carbon" estimates, thought you'd appreciate my piece on the political context, which is essential to consider given that key aspects of the final determination of such metrics is

[geo] NASA's role in gauging environmental change

n 30 years of climate learning <http://j.mp/revkin30yearsclimate>. *Mobile: 914-441-5556, Twitter: @revkin <http://twitter.com/revkin>, Facebook <https://www.facebook.com/andrew.revkin.5>, Music <http://j.mp/revkinmusic>* [image: --] Andrew Revkin [image: https://]about.me/revki

Re: [geo] Trump: Hot air and/or hot planet?

But he also (in mostly-ignored statements) pledged to sustain federal R and move away from fossil fuels> Prospects for the Environment, and Environmentalism, Under President Trump http://nyti.ms/2eDpzlU Prospects for the Environment, and Environmentalism, Under President Trump By ANDREW C.

Re: [geo] Negative emissions for climate change stabilization & the role of CO2 geological storage

Here's a piece with a coda proposing who should help finance "negative emissions" RD: http://nyti.ms/1Omq9F2 As Documents Show Wider Oil Industry Knowledge of CO2 Climate Impacts, a “Take it Back” Proposal By ANDREW C. REVKIN DECEMBER

[geo] Exclusive interview with Russia's leading permafrost expert, fresh from Siberian hole

Marina Leibman says some fascinating things about the durability of permafrost in the face of surface warming, including some negative feedbacks that further insulate it. https://www.youtube.com/watch?v=E5fK3TT2GAQfeature=youtu.be -- *_* ANDREW C. REVKIN Dot Earth blogger

[geo] With some studies published, a fresh assessment of the Haida iron/salmon project

L 18 7:55 AMJul 18 7:55 am Comment http://dotearth.blogs.nytimes.com/2014/07/18/a-fresh-look-at-iron-plankton-carbon-salmon-and-ocean-engineering/#commentsContainer A Fresh Look at Iron, Plankton, Carbon, Salmon and Ocean Engineering

[geo] apologies for wrong piece clipped

Not sure what happened there. Here's latest reply to the Hamilton rejection of a 'good' path in a turbulent time - from Michael Tobis and Curt Stager: http://dotearth.blogs.nytimes.com/2014/06/22/two-climate-researchers-weigh-the-notion-of-a-good-path-in-the-anthropocene Two Climate Analysts

[geo] Colbert isn't the only humorist exploring geo-engineering

If you haven't seen the 2008 video at bottom of this post, have a look: http://dotearth.blogs.nytimes.com/2013/12/13/engineering-the-climate-colberts-all-chocolate-dinner/ HUMOR http://dotearth.blogs.nytimes.com/category/humor/ December 13, 2013, 10:13 am

Re: [geo] Rutgers SLR Experts Survey 11-22-2013

I'd like to see the methodology scrutinized by an independent analyst specializing in expert elicitations (this may have been done, but none of the authors seem to be from that discipline). To winnow from 500 researchers publishing 6 papers in the last five years to 90 who returned estimates

Re: [geo] A Case for Climate Engineering

we need to do a chat for dot earth when you have time (google+ hangout?). i have book and started to go through it. will take til next week to get it done given flow of other stuff. On Tue, Oct 29, 2013 at 8:55 AM, David Keith davidkeit...@gmail.com wrote: My book *A Case for Climate

Re: [geo] Naomi Klein: Green groups may be more damaging than climate change deniers - Salon.com

All the points Andrew made below about geo-engineering were made in recent years about adaptation (some called it immoral to even talk of adaptation). The reality, of course, is that the epic, multi-generational path from a fossil-fueled civilization to whatever comes next is implicitly an

[geo] Dan Kahan of Yale on Alan's question about geo-eng studies

Dan sent this when I sent out a query to some social scientists on Alan's geo-eng-group question (not sure if it was directly posted as well) Geoengineering and the Science Communication Environment: A Cross-Cultural Experiment

Re: [geo] What kind of observing system do we need in place to take maximal advantage of the next big volcano?

great question. i'd like to post a variant on dot earth from you if you'd be okay with that. just another sentence or two on why volcanoes are important natural experiments, perhaps a line on how recent work has found that more modest volcanoes seem to have more impact (?), then the callout? On

Re: [geo] Re: Why Greenland’s melting could be the biggest climate disaster of all

There's also fresh input from Richard A. (and Waleed Abdalati) on Greenland and sea level in this new dot earth post: Eyes Turn to Antarctica as Study Shows Greenland's Ice Has Endured Warmer Climates http://nyti.ms/Yq7uhA I turned to Richard

Re: [geo] Re: Why Greenland's melting could be the biggest climate disaster of all

to coastal planners.” ** ** Thomas Homer-Dixon University of Waterloo ** ** ** ** ** ** On Jan 28, 2013 5:12 PM, Andrew Revkin rev...@gmail.com wrote: There's also fresh input from Richard A. (and Waleed Abdalati) on Greenland and sea level in this new dot earth

Re: [geo] Haida Salmon Restoration Project - Legal and Commercial issues

For the record I agree (particularly on basis that they see this as Haida waters, that evidence from eruption plumes points to salmon benefit. On Monday, October 22, 2012, Bhaskar M V bhaskarmv...@gmail.com wrote: Haida Salmon Restoration Project Legal issues - The media advisory released by

[geo] Geo-engineering and Arctic mentioned here.

the many ideas in circulation and the persistent uncertainties in the system. *An Arctic Expert’s View of the Great Ice Melt of 2012http://www.slideshare.net/Revkin/an-arctic-experts-view-of-the-great-ice-melt-of-2012 *from *Andrew Revkin http://www.slideshare.net/Revkin* *4:37 p.m. | Postscript

[geo] Re: Stoat strongly criticises AMEG

I'm with Stoat, Ken Caldeira, David Keith, Alan Robock and others who see this emergency effort to rush cloud intervention in the Arctic on behalf of sea ice (and indirectly seabed methane) as undermining the case for a serious push on geo-engineering options, impacts and policy issues. You're

Re: [geo] New YouTube video: Kate Ricke on Nature Climate Change paper on cliamte sensitivity and effectiveness of SRM

I concur with Andrew. Great to see Ken doing this. It's both a responsibility AND opportunity, particularly given the shrinking mainstream science media. Two relevant pieces: http://dotearth.blogs.nytimes.com/2010/08/02/filling-the-science-communication-gap/

[geo] More scientists weigh in on Arctic methane and climate risk.

December 28, 2011, *1:13 PM*More Views on Climate Risk and Arctic Methanehttp://dotearth.blogs.nytimes.com/2011/12/28/more-views-on-global-warmin-and-arctic-methane/ By ANDREW C. REVKINhttp://dotearth.blogs.nytimes.com/author/andrew-c-revkin/ In trying to clarify what’s known, unknown and

[geo] more clarity on the questions surrounding Arctic methane.

The researchers who've been out in the slushy waters off Siberia have offered some clarity after a lot of media torquing. December 27, 2011, *12:54 PM*Leaders of Arctic Methane Project Clarify Climate

Re: [geo] Re: September sea-ice gone by end of century? (or much sooner)

Why don't those of you dipping a (cold) toe in this arena enter the Sea Ice Outlook comparison held each season by SEARCH? http://www.arcus.org/search/seaiceoutlook/guidelines (I noticed that WattsUpWithThat did~ ) More on that effort from Dot

Re: [geo] September sea-ice gone by end of century? (or much sooner)

http://dotearth.blogs.nytimes.com/2010/03/22/new-light-shed-on-north-pole-ice-trends/ The bottom line, expressed here before, is that no one should expect to find much broad meaning in short-term variability in Arctic sea ice — in one direction or the other. If there is a death spiral, expect a

[geo] enough geoengineering. we just have to engineer ourselves...

For those, like me, who need a break amid the recent burst of news on climate front, please watch this video and report back if you don't chuckle: http://j.mp/dotBall -- Andrew C. Revkin The New York Times / Environment 620 Eighth Ave., NY, NY 10018 Tel: 212-556-7326 Mob: 914-441-5556 Fax:

[geo] more on 2-degree confusion

I explored the two-degree issue here a bit. http://dotearth.blogs.nytimes.com/2009/07/09/the-two-degree-solution/ This also came up in my recent piece on next steps for the IPCC http://www.nytimes.com/2009/08/04/science/earth/04clima.html read some of the comments in the related post:

[geo] Will Russia resist geo-eng efforts now?

The big question remains, who gets to set the planet's (or even Arctic's) temperature. Given this news, will Russia resist? http://www.nytimes.com/2009/09/11/science/earth/11passage.html comments welcome here:

[geo] on monsoons and warming

The work I've tracked on monsoon remains equivocal on overall rainfall. Interesting 2006 study showed no change in total precip last 50 years, but more coming in heavy downpours (familiar refrain). http://www.nytimes.com/2006/12/01/world/asia/01briefs-indiafloods.html

[geo] Re: we're engineering the arctic now

. And what happened to her experiment in preventative extinction? She was crushed by a dinosaur that followed her through one of her time portals. Gotta watch out for that technology. It'll get you when you least expect it. Alvia Gaskill Pro-Human Lobbyist - Original Message - From: Andrew

[geo] we're engineering the arctic now

http://www.nytimes.com/2009/09/04/science/earth/04arctic.html http://dotearth.blogs.nytimes.com/2009/09/03/humans-may-have-ended-long-arctic-chill/ we may be able to 'skip' the next ice age in fact. would love your thoughts in the comments section. -- Andrew C. Revkin The New York Times /

[geo] whatever you think of orbiting solar...

does anyone out there see heat harvesting from parking lots as transformational? http://dotearth.blogs.nytimes.com/2009/08/14/energy-frontiers-space-solar-hot-lots/ weigh in... -- Andrew C. Revkin The New York Times / Environment 620 Eighth Ave., NY, NY 10018 Tel: 212-556-7326 Mob:

[geo] Is this what an energy revolution looks like?

Here's an ARPA-E rejection letter. 98% of those pursuing energy breakthroughs rejected by DOE: http://bit.ly/EnergyRejection in first round... -- Andrew C. Revkin The New York Times / Environment 620 Eighth Ave., NY, NY 10018 Tel: 212-556-7326 Mob: 914-441-5556 Fax: 509-357-0965

[geo] more on Arpa-E rejection letters

The tail end of this post discusses the Arpa-E rejection letters. I'll be posting an example on Monday. http://dotearth.blogs.nytimes.com/2009/07/30/how-many-ds-in-obamas-energy-pledge/ -- Andrew C. Revkin The New York Times / Environment 620 Eighth Ave., NY, NY 10018 Tel: 212-556-7326 Mob:

[geo] Global Hum Report

The GHF assertion that specific, or even estimated, death counts and costs can already be calculated is what has been strongly challenged (and not just by usual suspects). The report (authors indicated it's not a study really) didn't count earthquake deaths as climate-related. It tried (and

[geo] the sea-level news

Thaat AFP story that made the rounds didn't bother discussing the results with any other experts in the field. For a more nuanced look at the evidence and conclusions, go here (blog post has link to news story): http://bit.ly/dotSeaRise -- Andrew C. Revkin The New York Times / Environment

[geo] comment space finally open on holdren clarification post

Just in case anyone wants to comment, an alert here that our comment function on Times blogs is back up and running after a huge tech-quake yesterday. Holdren post clarifying his stance following the AP storm is here: http://bit.ly/dotHoldren -- Andrew C. Revkin The New York Times /

[geo] runaway climate change

Who on this list knows why the Arctic warming ~ 8,000 years ago (quite protracted and significantly warmer than today) did not lead to runaway warming? Presumably something kicked in the other direction? I'm pursuing a clearer picture of lessons from the Holocene and the Eemian (the

[geo] Black Pickle concept and the Great Restoration

Jesse Ausubel discusses the Black Pickle concept for sequestering carbon in the sea at the tail end of this updated post: http://tinyurl.com/dotUrbanJungle -- Andrew C. Revkin The New York Times / Environment 620 Eighth Ave., NY, NY 10018 Tel: 212-556-7326 Mob: 914-441-5556 Fax: 509-357-0965

[geo] arctic engineering needs and sea-ice science

hi all, I consulted with a few sea-ice wizards on the exchanges here related to Arctic trends, and Jennifer Francis at Rutgers weighed in with the following thoughts. Note the importance of the boundary layer changes as well. There are many important factors besides albedo and ocean solar

[geo] stepping back to remember what it's all about...

Dear all, I thought you'd appreciate my holiday post on Dot Earth -- http://tinyurl.com/dotEarthrise -- which affords a fresh look at that remarkable view a few lucky astronauts have gotten of Earth rising over the sterile horizon of the Moon. If you haven't seen the Japanese VIDEO version