Author Archives: Dennis SILVERMAN

About Dennis SILVERMAN

I am a retired Professor of Physics and Astronomy at U C Irvine. For a decade I have been active in learning about energy and the environment, and in lecturing and attending classes at the Osher Lifelong Learning Institute (OLLI) at UC Irvine.

Why Keep Including India When Comparing US with China Greenhouse Gas Emissions?

When industry and conservative writers or commentators oppose lowering US greenhouse gas (GHG) emissions, they always point out that China’s are now higher than US emissions, and they are supposedly doing nothing about it, and throw in India as third.  … Continue reading

Posted in Climate Change, Greenhouse Gas Emissions | Leave a comment

Comparison of Greenhouse Warming for Leaked Methane versus CO2 from Coal

  There are two popular comparisons of greenhouse gas effects of leaked methane versus CO2 from burning fossil fuel.  They involve 20 or 100 year periods, and comparison of the gasses for the same weight. Neither time period has a … Continue reading

Posted in Climate Change, Electric Power, Energy Efficiency, Natural Gas, Ocean Acidification, Solar Energy, Wind Energy | Leave a comment

Replacing Old Coal with New Natural Gas Plants Can Reduce CO2 Production to Less Than a Third Per Plant

It is well known that since natural gas generates half the CO2 for the same energy produced as coal in current plants, that replacing old coal plants would reduce CO2 pollution by a half for the switched plants.  Those calculations … Continue reading

Posted in Climate Change, Natural Gas | Leave a comment

Southern California Edison 2013 Power Content Mix

Southern California Edison 2013 Power Content Mix It’s that time of year when energy mavins await their California utilities power content label. SCE’s arrived in my electrical bill. Since I couldn’t yet find it on Google, I took a picture … Continue reading

Posted in California Power Mixes, Climate Change, Fossil Fuel Energy, Nuclear Energy, Renewable Energy, San Onofre, Solar Energy, Wind Energy | Leave a comment

Investors’ Fossil Fuel Company Activism, Rather Than Divestment

As a dynamic treatment of fossil fuel companies by environmental investors, much could be accomplished to lower carbon emissions through activism, rather than the passive act of divestment. This would involve universities and foundations that hold fossil fuel stocks to … Continue reading

Posted in Climate Change, Conservation, Electric Power, Energy Efficiency, Fossil Fuel Energy, Natural Gas, Oil, Renewable Energy, Solar Energy, Uncategorized, Wind Energy | Leave a comment

California Colleges in the Top 200 Student Choice Rankings, 2015

The parchment.com college application website has ranked the favorite college choices among applicants using their website and system.  The rankings are based on more than 440,000 acceptances.  Here we just pick out the ranked California colleges in the top 200.  … Continue reading

Posted in California University Rankings, Education, UC Irvine | Leave a comment

California University Applicants’ preferences for Students with Multiple Admissions

parchment.com is a website that allows prospective undergraduate students to apply to multiple universities with the same forms.  It also keeps track of who is admitted where, and what their final choice is.  We show how that works out for … Continue reading

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Physics Graduate Programs in 2015 US News and World Report Rankings

  We list the top 43 Physics graduate programs, which include most of the California campuses. 1 MIT 2 tie     Caltech     Harvard     Princeton     Stanford     UC Berkeley 7 tie     Cornell     U. Chicago 9 U. … Continue reading

Posted in Education, Physics Departments, UC Irvine | Leave a comment

Rankings of California Universities Among Public Universities, 2015

  US News and World’s Report College Rankings, 2015, separates a list of public universities. Here are California Universities in the rankings. Since rankings don’t really give the relative strengths in the criteria used, I also include in parentheses the … Continue reading

Posted in Education, UC Irvine | Tagged | Leave a comment

California Universities in US News and World Report 2015 Best Colleges

  First we list the top 10 nationwide to give them their full credit, and for comparison. In the list, first is their ranking, then their name, then in parentheses their overall scores, then their student to faculty ratios, and … Continue reading

Posted in Education, UC Irvine | Leave a comment