https://phys.org/news/2023-09-ancient-wax-reveals-global-affects.html

new study: warming potentially could lead to previously under-appreciated flux in #methane emissions from lakes.

"Last time #Greenland lakes experienced major warming, we were coming out of the last ice age, and it took some time for the conditions to develop for lake methane cycling to increase, but once it developed, the lakes in our study maintained an intensified methane cycle for **thousands of years** until the onset of the naturally driven late Holocene cooling."