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China’s “Carbon Intensity” Reduction

Thursday, November 26, 2009
By Will
China’s “Carbon Intensity” Reduction

In response to Pres. Obama’s pledge to reduce carbon emissions, China proposed to reduce its “carbon intensity”. This concept simply means increasing energy efficiency in GDP, which just follows from what it means to be a developing country. (We need to reduce fossil carbon emissions, so both proposals are good, but don’t go far... »

Rain and Runoff

Thursday, October 15, 2009
By Will
Rain and Runoff

Here’s a bit of local data on rainfall and runoff. The rainfall data comes from Durham’s NWS COOP Station No. 312515, and the Jordan Lake inflow data comes the Army Corps site for the reservoir. Here’s the daily rainfall for the last 10-11 years: So-called “best... »

SAT scores and Income

Tuesday, May 19, 2009
By Will
SAT scores and Income

Just to be clear, higher family income promotes better scores on standardized tests. Here I show data from North Carolina counties, plotting SAT scores versus family income, measured over the 100 counties: Overall, a pretty dramatic dependence. These data don’t really belong in “environmental inequity”,... »