A pamphlet the group leaves on cars whose tires have been slashed says: You’ll be angry, but don’t take it personally.

A far-left international group that encourages groups of people to deflate tires on parked sports utility vehicles (SUV) in an effort to combat global warming has expanded its operations to 18 countries.

The group, named the Tyre Extinguishers and based in the U.K., has claimed credit for tire-deflating operations in American cities including New York City, Boston, Chicago and San Francisco, and cities in England, Canada, France, Spain, Germany and Italy among others. And most recently, on Thursday, members affiliated with the Tyre Extinguishers conducted an action in Lisbon, Portugal.

“Reports coming in of very angry #CarShaggers who are upset they can’t drive their massive tanks around Lisbon. Oh no!” the group said. “Welcome to the fun, Portugal! Now that we’ve had our first action in Lisbon, where’s next?”

The more tires these vandals slash, the more people will turn against their efforts and attempts to combat so-called human caused climate change. These punks will also cause more carbon emissions due to people having to get towed or some sort of road assistance to change or fix their victim’s tires. Hopefully, police will catch most or all of these hoodlums soon.