https://medusa-online.com/wp-content/uploads/2023/01/logo-Medusa-begrijp-de-bodem-beter-1-300x189.png00Jerker Veenstrahttps://medusa-online.com/wp-content/uploads/2023/01/logo-Medusa-begrijp-de-bodem-beter-1-300x189.pngJerker Veenstra2019-11-22 12:38:112019-11-22 12:38:11Ontdooiende permafrost in Ny Alesund