Lisiecki's Ph.D. thesis was titled “Paleoclimate time series: New alignment and compositing techniques, a 5.3-Myr benthic δ18O stack, and analysis of Pliocene-Pleistocene climate transitions”.
[10][11] Paleoceanography software designed to find the optimal alignment of two paleoclimate signals using penalty functions to constrain the rate of accumulation for sediments.
[12] A Pliocene-Pleistocene stack, spanning 5.3-Myr, demonstrating an average of 57 globally distributed Benthic δ18O records collected from scientific literature, which measure ice volume and deep ocean temperature.
[14] The LR04 Stack is one of the most heavily cited Pliocene-entitled papers for δ18O due to the intensive mathematical meticulousness incorporated into the record, the level of objectivity involved, its use of global distribution and duration.
[15] The history of Earth's climate lies in the composition of ocean sediments as scientists are able to derive millions of years worth of information through the alignment of these sedimentary layers.
[15] Lisiecki proposed that this negative correlation is caused by the inhibition of internal climate feedbacks by periods of strong precession forcing.