A Feedback, But How Large?

Zhuang and colleagues, in GRL, publish a new analysis of high-latitude carbon source/sink behavior. Their conclusion, considering among other issues CO2 fertilization and the contribution of fire to the system (see here for a discussion of the fire CO2 source/sink issue) that the region’s CO2 contributions will go up as things warm over the century, …

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The Practical Effect of Cycling’s Doping Scandals

One of my favorite bike racers, Alexandre Vinokourov, is winning the Vuelta. Vinokourov is a great joy to watch – an unpredictable, attacking racer with a flair for the dramatic. I had no idea he was winning. It’s not that I intentionally boycotted the Vuelta. I just got out of the daily habit of checking …

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