Surrey County Council's annual meeting was temporarily suspended when environment protesters disrupted proceedings, singing: "I'll be watching you."
Councillors were forced briefly to adjourn to another room after about 35 members of Extinction Rebellion Surrey, interrupted - ironically, just after council leader Tim Oliver had pledged to set up an environmental charter, to include action on climate change.
After being ejected as they sang The Police song Every Breath You Take - repeating the line "I'll be watching you" - protesters complained that the council was "not acting with the urgency required".
Activist Chris Neill, from Godalming, said: "We really don’t want to disrupt meetings but we have to do what’s necessary to draw attention to this very serious situation."
Earlier, the protesters had handed councillors flowers, with letters urging them to "act now".