Holocene-length alkenone-based summer temperarature record from Arctic Svalbard lake sediments

Amplified by sea-ice feedbacks, even modest shifts in regional heat budget drive large climate responses. This is highlighted by the amplified response of the Arctic to global warming.

Assessing the signature of underlying forcing mechanisms require paleoclimate records, allowing us to expand our knowledge beyond the short instrumental period and contextualize ongoing warming. However, such data are scarce and sparse in the Arctic, limiting our ability to address these issues. We present 2 quantitative Holocene-length summer temperature reconstructions from the Arctic Svalbard archipelago.