Nature
1. Wetland carbon storage controlled by millennial-scale variation in relative sea-level rise
Kerrylee Rogers, Jeffrey J. Kelleway, Neil Saintilan, J. Patrick Megonigal, Janine B. Adams, James R. Holmquist, Meng Lu, Lisa Schile-Beers, Atun Zawadzki, Debashish Mazumder & Colin D. Woodroffe
2. Chinese crew extract first rock from beneath East Antarctic ice in 60 years
Science
3. The residence time of Southern Ocean surface waters and the 100,000-year ice age cycle
Adam P. Hasenfratz, Samuel L. Jaccard, Alfredo Martínez-García, Daniel M. Sigman, David A. Hodell, Derek Vance, Stefano M. Bernasconi, Helga (Kikki) F. Kleiven, F. Alexander Haumann, Gerald H. Haug
Abstract:
From 1.25 million to 700,000 years ago, the ice age cycle deepened and lengthened from 41,000- to 100,000-year periodicity, a transition that remains unexplained. Using surface- and bottom-dwelling foraminifera from the Antarctic Zone of the Southern Ocean to reconstruct the deep-to-surface supply of water during the ice ages of the past 1.5 million years, we found that a reduction in deep water supply and a concomitant freshening of the surface ocean coincided with the emergence of the high-amplitude 100,000-year glacial cycle. We propose that this slowing of deep-to-surface circulation (i.e., a longer residence time for Antarctic surface waters) prolonged ice ages by allowing the Antarctic halocline to strengthen, which increased the resistance of the Antarctic upper water column to orbitally paced drivers of carbon dioxide release.
PNAS
4. Impact of abrupt sea ice loss on Greenland water isotopes during the last glacial period
Louise C. Sime, Peter O. Hopcroft, and Rachael H. Rhodes
5. Changing available energy for extratropical cyclones and associated convection in Northern Hemisphere summer
Charles G. Gertler and Paul A. O’Gorman
Geology, Nature Geoscience, Nature communications, Nature Climate Changeno relevant
