Skip to main content

and
  1. No Access

    Article

    Eleven-year solar cycles over the last millennium revealed by radiocarbon in tree rings

    The Sun provides the principal energy input into the Earth system and solar variability represents a significant external climate forcing. Although observations of solar activity (sunspots) cover only the last...

    Nicolas Brehm, Alex Bayliss, Marcus Christl, Hans-Arno Synal in Nature Geoscience (2021)