Over the last decade or so, certain source-specific C 25 highly branched isoprenoid (HBI)
lipid biomarkers have emerged as useful proxies for Arctic and Antarctic sea ice. Thus, IP 25 …

2 Chapter 2 assesses observed large-scale changes in climate system drivers, key climate
indicators and 3 principal modes of variability. Chapter 3 considers model performance and …

To reconstruct past environmental changes, a range of indirect or proxy approaches can be
applied to Quaternary archives. Here, we review the complementary and novel insights that …

Coinciding with global warming, Arctic sea ice has rapidly decreased during the last four
decades and climate scenarios suggest that sea ice may completely disappear during …

Abstract High Arctic ecosystems and Indigenous livelihoods are tightly linked and exposed
to climate change, yet assessing their sensitivity requires a long-term perspective. Here, we …

Alkenones are biomarkers produced solely by algae in the order Isochrysidales that have
been used to reconstruct sea surface temperature (SST) since the 1980s. However …

Although the permanently to seasonally ice-covered Arctic Ocean is a unique and sensitive
component in the Earth's climate system, the knowledge of its long-term climate history …

The Last Interglacial period (LIG) is a period with increased summer insolation at high
northern latitudes, which results in strong changes in the terrestrial and marine cryosphere …

We report the identification of a range of C 25 highly branched isoprenoid (HBI) alkenes and
certain sterols in filtered phytoplankton samples obtained from western Svalbard (Arctic) and …

Previously reported concentration data for highly branched isoprenoid (HBI) alkenes and the
sterol 24-methylcholesta-5, 22E-dien-3β-ol (brassicasterol or epi-brassicasterol) obtained …