Tag Archives: University of California Riverside

Earth’s great oxidation event

From the University of California – Riverside Oxygen’s ups and downs in the early atmosphere and ocean UC Riverside-led research team finds evidence for a dramatic rise in early oxygen about 2.3 billion years ago followed, more surprisingly, by an … Continue reading

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Posted in Paleoclimatology | Tagged , , , | 19 Comments

Natural Variability in the Widths of the Tropics

Guest Post by Willis Eschenbach In my previous post, “Does This Analysis Make My Tropics Look Big?“I discussed a paper called “Recent Northern Hemisphere tropical expansion primarily driven by black carbon and tropospheric ozone”, by Robert Allen et al, hereinafter … Continue reading

Posted in Tropics | Tagged , , , , , , , , , , , , | 93 Comments

Does This Analysis Make My Tropics Look Big?

Guest Post by Willis Eschenbach There is a new paper in Nature magazine that claims that the tropics are expanding. This would be worrisome because it could push the dry zones further north and south, moving the Saharan aridity into … Continue reading

Posted in Tropics | Tagged , , , , , , , , , , | 84 Comments

Carbon soot may be driving the expansion of the tropics – not CO2

From the University of California – Riverside it seems that black carbon soot is driving tropical expansion. How could this be? I thought CO2 was all powerful, so powerful with the strength of 400,000 Hiroshima bombs each day that animals … Continue reading

Posted in Aerosols, Carbon soot | Tagged , , , , , , , , | 74 Comments