Zero-Carbon Economy: A Grand -and Necessary – Vision
I just watched a video produced by Cambridge University called “The Climate Crisis: Towards Zero Carbon”: Well done, Cambridge! The video first shows that data on...
More power lines, or rooftop solar panels? There is no easy answer (but here is a way to think about it)
New York Times recently had an article by Ivan Penn titled “More power lines, or rooftop solar panels?” which poses an important question: Should we rely on...
ICCT’s Report on the Lifecycle Comparisons of GHG Emissions of Gas Cars vs. EV is Filling a Void
Today The International Council on Clean Transportation release a report called “A global comparison of the life-cycle greenhouse gas emissions of combustion engine and...
The Most Factual and Poignant Article on the Failure on COVID Data Collection and Interpretation (So Far)
Today, WSJ published a scathing opinion piece by Dr. Marty Makary from Johns Hopkins University titled “The Flimsy Evidence Behind the CDC’s Push to Vaccinate Children:...
Modeling Driving Distances (3)
Since my last post on using NTHS dataset to fit people’s driving distances, I have made some further modifications: (1) There are some very large TRPMILE data values, in...
Modeling Driving Distances (2)
The National Household Travel Survey (NHTS) is probably the most comprehensive data source on driving behaviors of people in the US. It captures travel by US residents in all...
Modeling Driving Distances (1)
In order to qualitatively study range anxiety, one of the first steps is to understand people’s driving behavior. A basic question is: What is the statistical...
Digital Technology and Clean Energy
I just finished a book titled “Energy’s Digital Future” authored by Professor Amy Myers Jaffe. The book raises a few very important points that are worthy of...
Range Anxiety for Electric Vehicles (EV) – Part I
To a consumer who is considering purchasing an EV, range anxiety is a real thing, even though the name may suggest it is psychological. Moreover, range anxiety has multiple...