A Grand Experiment: Brunel’s Atmospheric Railway

I try to avoid writing about similar subjects in consecutive weeks, unless I’m specifically writing a miniseries. But I’ve wanted to write about this event in railway history for months and figured that now is as good a time as any to do it. In 2002, the BBC conducted a poll on the 100 greatest …

Geoengineering Is Not the Answer

The data don’t lie. Carbon dioxide (CO2) levels have been steadily increasing in the atmosphere since the industrial revolution, and today the atmospheric concentration of this greenhouse gas is higher than it has been for millennia. 3 million years ago, when atmospheric CO2 concentrations were the same as they are currently (407.8 ppm as of …

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