Does California's Low Carbon Fuel Standards reduce carbon dioxide emissions?

PLoS One · 2018 · PMC6141099 · PMID 30222776

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weakly significantno p-value reported

Except for 2009, the placebo effects in other years are not significant or only weakly significant with magnitudes near zero.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.