The first team meeting was held from 27-Sep to 01-Oct of 2021 in hybrid format.
The tentative date for the second meeting is scheduled for 07-10 June 2022.

<First meeting>

• 27-Sep
  S. Dalla – theoretical possibilities to produce extreme SPE
  H. Hudson – relation between SPE strength and flare-CME energy;
  R. Buetikofer – Observation of strong SEP events near Earth and estimation of their energy spectra;
  D. Knipp – Extreme events in the Space Weather perspective;
  Discussions
• 28-Sep
  L. Wacker – annual precise measurements of 14C and discovery of new events
  Nicolas Brehm — 14C measurements at ETH and new event candidates
  F. Miyake – events 660 BC, 5410 BC and search for new events;
  F. Mekhaldi – New data on 10Be and 36Cl measurements around SEP events;
  T. Jull – closing some candidates (3372 BC) and searching for new ones
  M.Baroni – An update in 10Be and 36Cl data and search for new events
  Discussions
• 29-Sep
  S. Poluianov – The current state of cosmogenic nuclide production models
  E. Rozanov – Solar proton influence on the atmosphere and climate for different states of the geomagnetic fields
  I. Usoskin – Revised spectra of SPEs and limits of SPE detectability; Updated statistic of SPE events strength
  Y. Notsu – statistic of super-flares in comparison to the solar proxy, stellar CMEs
  Discussions
• 30-Sep
  H. Hayakawa – chronicle proxy (low-lat. aurorae, naked-eye sunspots)
  R. Horne – state-of-the-art in the field of safety and risks of extreme SEP events and the most important parameters there
  H. Maehara – updates of the stellar superflare statistics + stellar CME
  A. Shapiro – robust determination of the sun-like super-flaring stars vs. possible biases of the rotation period
  Discussions
• 01-Oct
  T. Spiegl – The role of middle atmosphere dynamics on the transport of cosmogenic isotopes and possible tropospheric application, carbon cycle into EMAC
  Discussions