Category Archives: Carbon Cycle
The class “Climate Science for Climate Activists” I have taught for the last 6 or so weeks is now completed. The slides are available here.
(On 2019-07-06, repaired a typo, and on 2019-07-16 linked in a post by Professor Stefan Rahmstorf at RealClimate.) Jesse Reynolds at Legal Planet is on this. But, as I noted at LinkedIn, even if I accept the entirety of the … Continue reading
South Shore Recycling Cooperative Director Claire Galkowski, spoke in Norwell, at the South Shore Natural Science Center, a couple of weeks ago:
(Slightly updated 2019-04-08, although the podcast has not been updated to be consistent.) (This blog post is accompanied by an explanatory podcast. See below.) Many people compost. It can be easy or hard, depending upon your tolerance for turning and … Continue reading
AS Arman Oganisian of Stable Markets writes “There are no solutions, only trade-offs.” That is a fundamentally engineering attitude. It is fundamentally about the economics, and, in particular, the dramatic drop in levelized cost of energy for wind and renewables, … Continue reading
(Update, 2019-07-01) Another obstacle to afforestation as a means of rapidly drawing down CO2 from the climate system: U.Büntgen, P.J.Krusic, A.Piermattei, D.A.Coomes, J.Esper, V.S.Myglan, A.V.Kirdyanov, J.J.Camarero, A.Crivellaro, C.Körne, “Limited capacity of tree growth to mitigate the global greenhouse effect under … Continue reading
On Sunday, 11th February 2018, I presented an Abstract of a 3 hour talk on the subject, “Carbon emissions and climate: Where do we stand, and what can be done if it all goes wrong?” at the Needham Lyceum, hosted … Continue reading
Response to a paper by Hermann Harde, from Ken Rice at … And Then There’s Physics. Dr Rice cites two other responses as well: One by Gavin Schmidt at RealClimate. One from 2011 by Gavin Cawley from the University of … Continue reading
I have made an important update to an earlier post here, Getting back to 350 ppm CO2: You can’t go home again. The message, essentially based upon recent work Tokarska and Zickfield on one hand, and by The Global Carbon … Continue reading
(Update of this piece, included below.) (Major update of this piece included below.) You can’t. It’ll cost much more than 23 times 40 times the Gross World Product to do it. And, in any case, you need to go to … Continue reading
Alerted to the existence of the image by Tamino. The figure is due to the irrepressible Randall Munroe.
Postscript, 2nd April 2016 I’ve been asked offline whether I buy McPherson’s catastrophic warming scenario. I don’t, or at least I wouldn’t bet on it. Each of the components of Professor McPherson’s scenario are based upon solid science. But in … Continue reading
Or is Governor Baker and the Massachusetts House going to subcontract that to other states, like Maine, Rhode Island, Vermont, and New York? They are coming. Update, 2016-02-23 Where does Massachusetts get its energy now?
Excerpt, from NASA: Phytoplankton are the grass of the sea. They are floating, drifting, plant-like organisms that harness the energy of the Sun, mix it with carbon dioxide that they take from the atmosphere, and turn it into carbohydrates and … Continue reading
Like Sankey diagrams, causal diagrams are a useful tool to assess and communicate complicated systems and their intrarelationships: It’s possible to use these for analysis and prescription: Here is the (promised) presentation on reenforcing loops: So how can these techniques … Continue reading
The following are excerpted from a memorandum quoted by the Inside Climate News team, documenting the minutes of a 29th February 1980 of a task force on climate change at the American Petroleum Institute. Hat tip to Climate Denial Crock … Continue reading
Link to photos and other information available at Google+: https://plus.google.com/110148824733929465219/posts/UzzEQ1azUPe If you are just interested in the photos and videos: https://goo.gl/2s5EQ0 The Epcot Food & Wine Festival was a bust: Too many people, walking in uncoordinated directions, and too little … Continue reading
Originally posted on Climate Denial Crock of the Week:
A nahcolite from the Eocene Green River Formation. Credit: Timothy Lowenstein Phys.org: Ancient climates on Earth may have been more sensitive to carbon dioxide than was previously thought, according to new…
Climate Denial Crock of the Week features the latest revelation from Inside Climate News. It features former federal chief scientist for global warming research, Michael MacCracken, and physicist and climate scientist Gilbert Plass. Also featured is an open 2002 letter … Continue reading
Eli condenses the problem with the Carbon Cycle and excessive emissions of fossil fuel CO2 to a few paragraphs, a great figure, and a trio of linear differential equations.