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Category Archives: XR

James O’Brien changes his mind : XR is changing minds!

Posted on 7 September 2021 by ecoquant
Posted in #youthvgov, climate disruption, Extinction REbellion, Fridays for Future, XR | Leave a comment
  • Distributed Solar: The Democratizaton of Energy

  • Blogroll

    • What If
    • Brendon Brewer on Overfitting Important and insightful presentation by Brendon Brewer on overfitting
    • London Review of Books
    • "The Expert"
    • John Kruschke's "Dong Bayesian data analysis" blog Expanding and enhancing John’s book of same title (now in second edition!)
    • Why It’s So Freaking Hard To Make A Good COVID-19 Model Five Thirty Eight’s take on why pandemic modeling is so difficult
    • James' Empty Blog
    • The Mermaid's Tale A conversation about biological complexity and evolution, and the societal aspects of science
    • Leadership lessons from Lao Tzu
    • Professor David Draper
    • WEAPONS OF MATH DESTRUCTION Cathy O’Neil’s WEAPONS OF MATH DESTRUCTION,
    • Gabriel's staircase
    • John Cook's reasons to use Bayesian inference
    • All about Sankey diagrams
    • Busting Myths About Heat Pumps Heat pumps are perhaps the most efficient heating and cooling systems available. Recent literature distributed by utilities hawking natural gas and other sources use performance figures from heat pumps as they were available 15 years ago. See today’s.
    • "Perpetual Ocean" from NASA GSFC
    • Tim Harford's “More or Less'' Tim Harford explains – and sometimes debunks – the numbers and statistics used in political debate, the news and everyday life
    • GeoEnergy Math Prof Paul Pukite’s Web site devoted to energy derived from geological and geophysical processes and categorized according to its originating source.
    • International Society for Bayesian Analysis (ISBA)
    • Charlie Kufs' "Stats With Cats" blog “You took Statistics 101. Now what?”
    • Survey Methodology, Prof Ron Fricker http://faculty.nps.edu/rdfricke/
    • The Keeling Curve: its history History of the Keeling Curve and Charles David Keeling
    • Mertonian norms
    • Beautiful Weeds of New York City
    • Thaddeus Stevens quotes As I get older, I admire this guy more and more
    • Pat's blog While it is described as “The mathematical (and other) thoughts of a (now retired) math teacher”, this is false humility, as it chronicles the present and past life and times of mathematicians in their context. Recommended.
    • Label Noise
    • distributed solar and matching location to need
    • Ives and Dakos techniques for regime changes in series
    • Hermann Scheer Hermann Scheer was a visionary, a major guy, who thought deep thoughts about energy, and its implications for humanity’s relationship with physical reality
    • Carl Safina's blog One of the wisest on Earth
    • Los Alamos Center for Bayesian Methods
    • Bob Altemeyer on authoritarianism (via Dan Satterfield) The science behind the GOP civil war
    • AP Statistics: Sampling, by Michael Porinchak Twin City Schools
    • Earth Family Alpha Michael Osborne’s blog (former Executive at Austin Energy, now Chairman of the Electric Utility Commission for Austin, Texas)
    • Lenny Smith's CHAOS: A VERY SHORT INTRODUCTION This is a PDF version of Lenny Smith’s book of the same title, also available from Amazon.com
    • All about ENSO, and lunar tides (Paul Pukite) Historically, ENSO has been explained in terms of winds. But recently — and Dr Paul Pukite has insisted upon this for a long time — the oscillation of ENSO has been explained as a large-scale slosh due to lunar tidal forcing.
    • Comprehensive Guide to Bayes Rule
    • Dollars per BBL: Energy in Transition
    • Woods Hole Oceanographic Institution (WHOI)
    • "Talking Politics" podcast David Runciman, Helen Thompson
    • OOI Data Nuggets OOI Ocean Data Lab: The Data Nuggets
    • Subsidies for wind and solar versus subsidies for fossil fuels
    • Simon Wood's must-read paper on dynamic modeling of complex systems I highlighted Professor Wood’s paper in https://hypergeometric.wordpress.com/2014/12/26/struggling-with-problems-already-attacked/
    • Team Andrew Weinberg Walking September 8th for the Jimmy Fund!
    • Darren Wilkinson's introduction to ABC Darren Wilkinson’s introduction to approximate Bayesian computation (“ABC”). See also his post about summary statistics for ABC https://darrenjw.wordpress.com/2013/09/01/summary-stats-for-abc/
    • Healthy Home Healthy Planet
    • "Consider a Flat Pond" Invited talk introducing systems thinking, by Jan Galkowski, at First Parish in Needham, UU, via Zoom
    • Brian McGill's Dynamic Ecology blog Quantitative biology with pithy insights regarding applications of statistical methods
    • Mike Bloomberg, 2020 He can get progress on climate done, has the means and experts to counter the Trump and Republican digital disinformation machine, and has the experience, knowledge, and depth of experience to achieve and unify.
  • climate change

    • Skeptical Science
    • Équiterre Equiterre helps build a social movement by encouraging individuals, organizations and governments to make ecological and equitable choices, in a spirit of solidarity.
    • Wind sled Wind sled: A zero carbon way of exploring ice sheets
    • Non-linear feedbacks in climate (discussion of Bloch-Johnson, Pierrehumbert, Abbot paper) Discussion of http://onlinelibrary.wiley.com/wol1/doi/10.1002/2015GL064240/abstract
    • Model state level energy policy for New Englad Bob Massie’s proposed energy policy for Massachusetts, an admirable model for energy policy anywhere in New England
    • History of discovering Global Warming From the American Institute of Physics.
    • An open letter to Steve Levitt
    • "Warming Slowdown?" (part 1 of 2) The idea of a global warming slowdown or hiatus is critically examined, emphasizing the literature, the datasets, and means and methods for telling such. In two parts.
    • Bloomberg interactive graph on “What's warming the world''
    • Isaac Held's blog In the spirit of Ray Pierrehumbert’s “big ideas come from small models” in his textbook, PRINCIPLES OF PLANETARY CLIMATE, Dr Held presents quantitative essays regarding one feature or another of the Earth’s climate and weather system.
    • "Climate science is setttled enough"
    • Tamino's Open Mind Open Mind: A statistical look at climate, its science, and at science denial
    • `Who to believe on climate change': Simple checks By Bart Verheggen
    • Climate at a glance Current state of the climate, from NOAA
    • Jacobson WWS literature index
    • David Appell's early climate science
    • Ricky Rood's “What would happen to climate if we (suddenly) stopped emitting GHGs today?
    • SOLAR PRODUCTION at Westwood Statistical Studios Generation charts for our home in Westwood, MA
    • “The Irrelevance of Saturation: Why Carbon Dioxide Matters'' (Bart Levenson)
    • Ray Pierrehumbert's site related to "Principles of Planetary Climate" THE book on climate science
    • The Carbon Cycle The Carbon Cycle, monitored by The Carbon Project
    • “Ways to [try to] slow the Solar Century''
    • Climate Change Reports By John and Mel Harte
    • NOAA Annual Greenhouse Gas Index report The annual assessment by the National Oceanic and Atmospheric Administration of the radiative forcing from constituent atmospheric greenhouse gases
    • AIP's history of global warming science: impacts The American Institute of Physics has a fine history of the science of climate change. This link summarizes the history of impacts of climate change.
    • Risk and Well-Being
    • Earth System Models
    • The HUMAN-caused greenhouse effect, in under 5 minutes, by Bill Nye
    • Eli on the spectroscopic basis of atmospheric radiation physical chemistry
    • Rabett Run Incisive analysis of climate science versus deliberate distraction
    • Berkeley Earth Surface Temperature
    • HotWhopper: It's excellent. Global warming and climate change. Eavesdropping on the deniosphere, its weird pseudo-science and crazy conspiracy whoppers.
    • "When Did Global Warming Stop" Doc Snow’s treatment of the denier claim that there’s been no warming for the most recent N years. (See http://hubpages.com/@doc-snow for more on him.)
    • Ellenbogen: There is no Such Thing as Wind Turbine Syndrome
    • Sea Change Boston
    • Social Cost of Carbon
    • On Thomas Edison and Solar Electric Power
    • The great Michael Osborne's latest opinions Michael Osborne is a genius operative and champion of solar energy. I have learned never to disregard ANYTHING he says. He is mentor of Karl Ragabo, and the genius instigator of the Texas renewable energy miracle.
    • RealClimate
    • Jacobson WWS literature index
    • Anti—Anti-#ClimateEmergency Whether to declare a climate emergency is debatable. But some critics have gone way overboard.
    • Exxon-Mobil statement on UNFCCC COP21
    • Simple models of climate change
    • Climate Change: A health emergency … New England Journal of Medicine Caren G. Solomon, M.D., M.P.H., and Regina C. LaRocque, M.D., M.P.H., January 17, 2019 N Engl J Med 2019; 380:209-211 DOI: 10.1056/NEJMp1817067
    • World Weather Attribution
    • ATTP summarizes all that stuff about Committed Warming from AND THEN THERE’S PHYSICS
    • Climate change: Evidence and causes A project of the UK Royal Society: (1) Answers to key questions, (2) evidence and causes, and (3) a short guide to climate science
    • Professor Robert Strom's compendium of resources on climate change Truly excellent
    • Interview with Wally Broecker Interview with Wally Broecker
    • James Powell on sampling the climate consensus
  • Archives

  • Jan Galkowski

    • 1 ecoquant
  • Blog Stats

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  • Recent Posts

    • “No, we’re not” 1 August 2026
    • That’s a silly idea, especially about a universe which is fundamentally stochastic. 30 July 2026
    • So much for U.S. leadership in Science and Engineering 30 July 2026
    • “record warm 2026” 27 July 2026
    • Professor Jeff Galkowski won a Whitehead Prize this year 3 July 2026
    • From TJ on the 250th 3 July 2026
    • Professor James Hansen 30 June 2026
    • Insight from Tamino 28 June 2026
    • Climate is Back … 24 June 2026
    • Some Solar in Westwood 22 June 2026
    • Importance of NSF’s Ocean Observatories Initiative 15 June 2026
    • More on RCP 8.5 from … 26 May 2026
    • The story of RCP 8.5 26 May 2026
    • “Estonia Warns European Allies Against Direct Talks With Russia” 17 May 2026
    • wind machine 10 May 2026
    • Dr Des Callaghan’s “Bryophytes around the world” 28 April 2026
    • Entire NSF National Science Board fired by Donald Trump 27 April 2026
    • DT is moving to control U.S. elections, one state at a time 27 April 2026
    • The Climate Brink 17 April 2026
    • Tamino, on Climate, Spring 2026 12 April 2026
    • from Canada PM Mark Carney 24 March 2026
    • Professor Katharine Hayhoe “Talking Climate” today 21 March 2026
    • thanks DT for making the case for solar and EVs and NOT oil 20 March 2026
    • 2026 March 14 [J 073.87] “Pi Day” 14 March 2026
    • Rare and hard to find 1937-1938 15 February 2026
    • EPA official actions on their “endangerment finding” 14 February 2026
    • RC: “a peek behind the curtain” 23 January 2026
    • Stark 18 January 2026
    • Could this be why DT wants Greenland? 16 January 2026
    • NAP update on Endangerment Finding 26 December 2025
    • Sporophyte capsules 16 October 2025
    • AI and GPT don’t manufacture results from nothing 18 September 2025
    • 16th September 2025, Westwood, MA 16 September 2025
    • Pohlia lescuriana 6 September 2025
    • Mckibben vs Nordhous 22 August 2025
    • NOAA climate assessment which has been taken off the federal site 13 August 2025
    • Fast-Track Review of Latest Evidence for Whether Greenhouse Gas Emissions Endanger Public Health and Welfare 7 August 2025
    • A New Phase in Trump’s War on Data 6 August 2025
    • Beaker Street 5 August 2025
    • Biofluorescent marsupial 5 August 2025
    • Steve Buchan, botanical photographer 28 July 2025
    • 2025 Jul 4-12 J(185-193) around yard 2 long lenses OM5 camera 12 July 2025
    • 25mm compact lens equivalent to 50mm 2 July 2025
    • Polytrichum macro photos, several of spore capsules 30 June 2025
    • “Macro Treasures” 12 June 2025
    • Flickr Account 24 May 2025
    • 2025 May 8 J 128 redbuds, etc, OM Systems 60mm lens 8 May 2025
    • 2025 April 19 J109 some close-ups of Polytrichum 19 April 2025
    • A New Lens 26 March 2025
    • 2025 March 23 J 82 23 March 2025
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  • Goodreads

  • Kalman filtering and smoothing; dynamic linear models



    Also, see datasets and R examples to accompany this excellent text.





    I have used dlm almost exclusively, except when extreme efficiency was required. Since Jouni Helske's KFAS was rewritten, though, I'm increasingly drawn to it, because the noise sources it supports are more diverse than dlm's. KFAS uses the notation and approaches of Durbin, Koopman, and Harvey.

    ``The real problem is that programmers have spent far too much time worrying about efficiency in the wrong places and at the wrong times; premature optimization is the root of all evil (or at least most of it) in programming.''
    Professor Donald Knuth, 1974
667 per centimeter Arctic Ice: The Saga Continues
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