Effective, disruptive activism or crude destructive behaviour? Climate activists have been hurling everything from tomato soup to mashed potatoes at priceless artworks by masters like Van Gogh and Monet.
Last week, group Last Generation Austria smuggled a black, oily liquid into a Vienna museum in a hot water bottle, threw it at a 100-year-old Gustav Klimt painting and then glued their hands to the protective glass.
They’re the latest in a string of demonstrations - which, love them or hate them - are definitely getting the world’s attention.
Speaking on Tova, spokesperson for Last Generation Austria David Sonnenbaum said they don't want to cause 'destruction', however, don't know any other way to get politicians' attention.
"Animals are dying. People are dying. It's happening in front of our eyes," Sonnenbaum said.
"This destruction of 30 minutes, yeah, we really don't want [to do] that but it is nothing compared to what is awaiting us… we see catastrophes coming more and more and more.
"The young people and their voices are being ignored."
When O'Brien argued that these actions could be harmful and put people off the cause of climate change, Sonnenbaum said 'peaceful civil resistance is not there to be popular'.
"It's there to shake up the politics, to get the truth there.
"Maybe they don't agree with the actions, but they start to maybe do simple things in their life and try to make change themselves.
"We are really sorry to do this destruction. It's not fun for us to sit on the street and glue our hands there, but then tell us what else can we do so the topic is getting on the agenda, so the politicians are confronted with it every single day?
"Please tell us what else we should do to wake up those politicians who just ignore simple, scientific fact."
Listen to the full interview between David Sonnenbaum and Tova above.
You can also download the full interview on the Tova podcast, and listen on the go.
