It is well established that greenhouse conditions prevailed during the Cretaceous Period (~
145–66 Ma). Determining the exact nature of the greenhouse-gas forcing, climatic warming …

Glycerol dialkyl glycerol tetraether (GDGT) lipids are membrane lipids which were long
thought to be synthesized mainly by archaea, organisms thought to be limited to extreme …

Palaeoclimate reconstructions of periods with warm climates and high atmospheric CO2
concentrations are crucial for develo** better projections of future climate change. Deep …

The early Eocene (56 to 48 million years ago) is inferred to have been the most recent time
that Earth's atmospheric CO 2 concentrations exceeded 1000 ppm. Global mean …

Molecular organic geochemical proxies are increasingly being utilized to reconstruct past
environmental conditions as new tools continue to be discovered and developed. To date …

The response of the terrestrial biosphere to warming remains one of the most poorly
understood and quantified aspects of the climate system. One way to test the behavior of the …

Archaeal membrane lipids are widely used for paleotemperature reconstructions, yet these
molecular fossils also bear rich information about ecology and evolution of marine ammonia …

Quantifying past continental temperature changes is an important aspect of paleoclimate
research as it allows us to constrain the amplitude of natural variability, test predictive …

Soil-derived branched glycerol dialkyl glycerol tetraethers (brGDGTs) in marine river fan
sediments have a potential use for determining changes in the mean annual temperature …

Molecular fossils (biomarkers) are abundant in organic rich natural archives such as peats
and lignites (fossilized peat), where their distribution is governed by their biological source …