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Our XXL Lysimeter Experiment, Article 6 of 6
The first five articles were about signal. This one is about the plumbing — the rain gauges, ambient monitors and buried probes that made the rest possible, and what four years of running them taught us about long-...
Our XXL Lysimeter Experiment, Article 5 of 6
A soil-CO₂ sensor is a tempting instrument. Weathering consumes CO₂, so — the reasoning goes — bury a probe, log the gas, and read carbon removal straight out of the ground. This article is about what thos...
Our XXL Lysimeter Experiment, ” Article 4 of 6
Total alkalinity is the number we care about, and it is expensive and slow: pump the leachat...
Our XXL Lysimeter Experiment, Article 3 of 6
In article 2 the leachate refused to separate the doses. Now we turn to the buried sensors, and the tone changes: they reveal a clean, repeatable engine that the monthly grab samples alone would never show...
Our XXL Lysimeter Experiment, Article 2 of 6
The intuition behind enhanced weathering is a straight line: more rock means more mineral surface, more surface means more dissolution, more dissolution means more captured CO₂. Spread twice as much basalt, remove roug...