Category Archives: nonlinear

A quick note on modeling operational risk from count data

The blog statcompute recently featured a proposal encouraging the use of ordinal models for difficult risk regressions involving count data. This is actually a second installment of a two-part post on this problem, the first dealing with flexibility in count … Continue reading

Posted in American Statistical Association, Bayesian, Bayesian computational methods, count data regression, dichotomising continuous variables, dynamic generalized linear models, Frank Harrell, Frequentist, Generalize Additive Models, generalized linear mixed models, generalized linear models, GLMMs, GLMs, John Kruschke, maximum likelihood, model comparison, Monte Carlo Statistical Methods, multivariate statistics, nonlinear, numerical software, numerics, premature categorization, probit regression, statistical regression, statistics | Tagged , , , | Leave a comment

Will soils hang on to their Carbon?

(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

Posted in adaptation, American Association for the Advancement of Science, Anthropocene, argoecology, bacteria, being carbon dioxide, Carbon Cycle, carbon dioxide, Carl Safina, climate, climate change, climate disruption, Global Carbon Project, global warming, microbiomes, nonlinear, nonlinear systems | 3 Comments

“Carbon emissions and climate: Where do we stand, and what can be done if it all goes wrong?”

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

Posted in Anthropocene, being carbon dioxide, Carbon Cycle, carbon dioxide, carbon dioxide capture, carbon dioxide sequestration, Carbon Tax, civilization, clear air capture of carbon dioxide, climate, climate change, climate disruption, COP21, Cult of Carbon, differential equations, dynamical systems, ecology, emissions, environment, exponential growth, fossil fuel divestment, fossil fuel infrastructure, fossil fuels, geoengineering, geophysics, Glen Peters, Global Carbon Project, global warming, greenhouse gases, Humans have a lot to answer for, Hyper Anthropocene, investments, James Hansen, Kerry Emanuel, liberal climate deniers, Mark Carney, Michael Bloomberg, Minsky moment, mitigation, nonlinear, nonlinear systems, oceanography, phytoplankton, population biology, population dynamics, precipitation, Principles of Planetary Climate, quantitative biology, quantitative ecology, radiative forcing, rationality, Ray Pierrehumbert, risk, sea level rise, sociology, stranded assets, supply chains, sustainability, T'kun Olam, the right to be and act stupid, the right to know, the tragedy of our present civilization, the value of financial assets, thermohaline circulation, tragedy of the horizon, unreason, UU, UU Needham, Wally Broecker, zero carbon | Leave a comment

on nonlinear dynamics of hordes of people

I spent a bit of last week at a symposium honoring the work of Charney and Lorenz in fluid dynamics. I am no serious student of fluid dynamics. I have a friend, Klaus, an engineer, who is, and makes a … Continue reading

Posted in Anthropocene, bifurcations, biology, Carl Safina, causation, complex systems, dynamic generalized linear models, dynamic linear models, dynamical systems, ecological services, ecology, Emily Shuckburgh, finance, Floris Takens, fluid dynamics, fluid eddies, games of chance, Hyper Anthropocene, investments, Lenny Smith, Lorenz, nonlinear, numerical algorithms, numerical analysis, politics, population biology, population dynamics, prediction markets, Principles of Planetary Climate, public transport, Ray Pierrehumbert, risk, sampling networks, sustainability, Timothy Lenton, Yale University Statistics Department, zero carbon, ``The tide is risin'/And so are we'' | 1 Comment