Lukas Wacker

TL;DR: This is the first set of consistently dated marine sediment cores enabling paleoclimate scientists to evaluate leads/lags between circulation and climate changes over vast regions of the Atlantic Ocean.

TL;DR: Direct dates for human remains found in association with Initial Upper Palaeolithic artefacts at Bacho Kiro Cave (Bulgaria) demonstrate the presence of Homo sapiens in the mid-latitudes of Europe before 45 thousand years ago.

TL;DR: The identification of distinct 14C excursions in 484 individual tree rings enable the authors to confirm the dating of 44 dendrochronologies from five continents, and suggest a global exposure to strong solar proton radiation.

TL;DR: In this article, the authors identify the cosmogenic radiocarbon signal of 775 CE in a subfossil larch engulfed and killed by pyroclastic currents emplaced during the initial rhyolitic phase of the explosive eruption.

TL;DR: The University of Bern has set up the new Laboratory for the Analysis of Radiocarbon with AMS (LARA) equipped with an accelerator mass spectrometer (AMS) MICADAS (MIni CArbon Dating System) to continue its long history of 14C analysis based on conventional counting as discussed by the authors.