On 24 June 2025, in the morning, at the call of Greenpeace, Robin Wood and BUND, around 20 climate activists staged a protest on Schloss Square in Stuttgart (Baden-Wurttemberg) against plans for cross-border CO2 infrastructure and underground carbon storage (CCS), coinciding with an official event involving Danish and Baden-Wurttemberg ministries. Protesters criticized CCS as a costly and unsafe excuse to avoid real emissions cuts.