From the end of the article:

Joanna Warrington, an organiser with Fossil Free London, said: “The UK criminalises peaceful climate activists like Greta whilst rolling out the red carpet for climate criminals in Mayfair hotels.

“Fossil fuel corporations are most responsible for the climate crisis, and we will continue to hold them to account no matter what the state throws at us. We have to, because nothing is worse than losing everything.”