legraLeGraDec 15, 2023

Cool #ClimateChange reporting from @alexwitze
https://www.nature.com/articles/d41586-023-04002-5

Remember all the news ‘hottest day in 125000 yrs’?

During one of such previous 4 interglacial periods — when *annual* global temperatures were lower than today, at least one corner of Greenland was melted - enough to raise global seas by ~½ meter.

The GreenDrill project #LDEO #Columbia uses Cosmogenic Isotopes (like Carbon-14, here Beryllium-10) to determine when parts of Greenland were ice free.

https://greendrill-cosmo.ldeo.columbia.edu

Scientists drilled through 500 metres of Greenland’s ice — here’s what they found at the bottom

Bedrock extracted from beneath the island’s frozen covering offers hints of the ice sheet’s past and future.

legraLeGraNov 21, 2022
The Google doodle today is of Marie Tharp — pretty neat. Marie Tharp (July 30, 1920 – August 23, 2006) was an American geologist and oceanographic cartographer who, in partnership with Bruce Heezen, created the first scientific bathymetry map of the Atlantic Ocean floor while at #ldeo #columbia in the 1950’s. Lamont Doherty Earth Observatory has a visiting researcher fellowship in her name to this day. #womeninstem #geoscience #MappingMondays https://www.google.com/?fpdoodle=1&doodle=240342495&hl=en&gl=us&ictx=3&sa=X&ved=0ahUKEwjciuXz0L_7AhVcFjQIHVBdA5EQPQgR
Google

Celebrating Marie Tharp #GoogleDoodle