CLEAN : Extinction Rebellion climate activists defy London protest ban

The transcript discusses the need for a radical and urgent response from both the government and food companies to address the fragile food supply system, which is vulnerable to extreme weather. It emphasizes the importance of truth and action from the government and highlights the movement's commitment to addressing these issues collectively.

What is the significance of the statement regarding the police action mentioned in the text?

What does the speaker mean by 'upgrading' in the context of the discussion?