Shuji Aoki

TL;DR: Measurements of midday vertical atmospheric CO2 distributions reveal annual-mean vertical CO2 gradients that are inconsistent with atmospheric models that estimate a large transfer of terrestrial carbon from tropical to northern latitudes, suggesting that northern terrestrial uptake of industrial CO2 emissions plays a smaller role than previously thought.

TL;DR: The results indicate that orbital-scale Antarctic climate change lags Northern Hemisphere insolation by a few millennia, and that the increases in Antarctic temperature and atmospheric carbon dioxide concentration during the last four terminations occurred within the rising phase of Northern Hemisphere summer insolation.

TL;DR: In this paper, the authors used balloon-borne measurements of stratospheric trace gases over the past 30 years to derive the mean age of air from sulphur hexafluoride (SF6) and CO2 mixing ratios.

TL;DR: There is evidence of significant CH3Cl emission from warm coastal land, particularly from tropical islands, based on a global monitoring study and spot measurements, which show enhancement of atmospheric CH3 Cl in the tropics, a close correlation betweenCH3Cl concentrations and those of biogenic compounds emitted by terrestrial plants, and OH-linked seasonality of CH3cl concentrations in middle and high latitudes.

TL;DR: Numerical experiments showed that climate becomes most unstable in intermediate glacial conditions associated with large changes in sea ice and the Atlantic Meridional Overturning Circulation, and model sensitivity experiments suggest that the prerequisite for the most frequent climate instability with bipolar seesaw pattern during the late Pleistocene era is associated with reduced atmospheric CO2 concentration via global cooling and sea ice formation in the North Atlantic.