That means climate terrorism.

Allegation: “Climate Terrorism” – Police Release Wanted Photos Following Power Grid Sabotage
There have been attempts at sabotage against the power grid in three federal states. Investigators have already located the vehicle belonging to the alleged author of a letter claiming responsibility. Authorities are searching for the fugitive suspect using two mug shots.
Police are continuing their intensive search for a man suspected of carrying out acts of sabotage against the German power grid. The incidents are concentrated in North Rhine-Westphalia, Brandenburg, and, most recently, Saxony. Lignite is still being mined and used to generate electricity in all three states. In connection with the incidents, police and prosecutors in Brandenburg and North Rhine-Westphalia have now issued a joint appeal for information, including two photos of the 48-year-old suspect, and are asking the public for tips.