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Red or Blue pill? Light sensitive diatoms may hold key to a big portion of the climate puzzle

From the Helmholtz Centre for Environmental Research: In between red light and blue light: Leipzig researchers discover new functionality of molecular light switches Diatoms play an important role in water quality and in the global climate. They generate about one fourth of the oxygen in the Earth’s atmosphere and perform around one-quarter of the global…

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The ‘strawman’ albedo effect

From ETH Zurich , something that actually makes sense. Straw albedo mitigates extreme heat Wheat fields are often tilled immediately after the crop is harvested, removing the light-coloured stubble and crop residues from the soil surface and bringing dark bare earth to the top. Post-harvest tilling is a widely practised and common management technique in…

How Much Sunlight Actually Enters The System?

Guest Post by Willis Eschenbach There’s a new study in PNAS, entitled “Observational determination of albedo decrease caused by vanishing Arctic sea ice” by Pistone et al. Let me start by registering a huge protest against the title. The sea ice is varying, it isn’t “vanishing”, that’s just alarmist rhetoric that has no place in…

New PNAS paper claims Arctic planetary albedo dropped significantly, yet recent CERES data shows no significant change

From PNAS: Direct satellite observation reveals that the Arctic planetary albedo, a measure of reflectiveness, decreased from 0.52 to 0.48 between 1979 and 2011, a change in albedo that corresponds to a climate forcing 25% as large as that due to changes in atmospheric carbon dioxide concentrations over the same time period, according to this…