This post is really an ad for my new calculus textbook. I just received my author copies and thought I should promote it. For those that follow sustainabilitymath or use any of the calculus projects know that I’ve integrated many of them into the book. I also integrate R from …
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From the eia article As solar capacity grows, duck curves are getting deeper in California (June 21, 2023): As more solar capacity has come online in California, grid operators at the California Independent System Operator (CAISO) have observed a drop in net load (or the demand remaining after subtracting variable …
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From the iea Global EV Outlook 2023 Trends in batteries: Automotive lithium-ion (Li-ion) battery demand increased by about 65% to 550 GWh in 2022, from about 330 GWh in 2021, primarily as a result of growth in electric passenger car sales, with new registrations increasing by 55% in 2022 relative to 2021. …
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Rick Nevin provides updated graphs, one of the four posted here, in his post Update: Juvenile crime still falling fast in 2021 (4/2/2023). USA arrest rates by age have only been updated through 2020, but juvenile arrest data reported by 10 states (FL, TX, CA, NY, VA, TN, WA, SC, GA, NC) show the trend toward zero juvenile crime continued …
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The eia article Mixed water supply condition across western states affects 2023 hydropower outlook by Lindsay Aramayo (5/10/2023) has this to say Record-breaking rain and snow in parts of the western United States contribute to our forecast 72% rise in hydropower generation in California this year compared with last year, according to …
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The links to resources page has been revamped. For those of you looking for data I think I have made it easier. There is now a box with the type of data in bold and a link. I’ve also added a spatial data box for those looking for data with …
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The calculus projects page has been updated with the most recent data available. Most of the trends didn’t change but solar did and hence there were some changes in the countries used in the graphs. There is also an updated Excel curve fitting directions for those using Excel (consider using …
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The eia article U.S. simple-cycle natural gas turbines operate at record highs in summer 2022 by Mark Morey (3/1/2023) reports: The average monthly capacity factor for simple-cycle, natural gas turbine (SCGT) power plants in the United States has grown annually since 2020. Average capacity factors surpassed 20% for two consecutive …
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The graph here come from the post The new CDC report shows that Covid added little to teen mental health trends by Jon Haidt (2/16/2023). His thoughts on this graph: Here you can see a clear covid effect from 2019 to 2020, for all of the age groups who are …
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The World Bank article Progress in reducing maternal mortality has stagnated and we are not on track to achieve the SDG target: new UN report by Emi Suzuki, Charles Kouame, and Samuel Mills (2/22/2023) provides an update on maternal mortality. The key summary: Globally, the MMR dropped by 34% between …
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