My natural accent is American. I chose to speak with a U.K. accent when I was about to enter the final year at drama school in London. I was going to try to find a way to stay in the U.K. after I finished college and could not imagine trying to live and get work there with an American accent.
Look, very clearly there are things that need to be done urgently in relation to climate change, and of those the most obvious is to have an enforceable and equitable arrangement delivering deep cuts in emissions into the middle of the century.