If we see a run on the pound prior to the vote and people start cancelling their trips to europe that could be enough to swing the vote in the pro-camps favour. On the other side Putin may try some sort of escalation in Ukraine or get Assad to drive more refugees to the EU. Don’t forget ISIS timing some attack to push the people to vote to leave.
So many in DC think he will pull at the first sign of any drop in popularity or threat of scandal. I think they are underestimating his ego and the fact he has rebuilt his reputation numerous times. He want’s the keys and to take Hillary head on in my opinion.
He needs a few seasons to settle in to his persona as to me he still seems caught between “Colbert” and Colbert. A lot of the sketches are pretty similar so maybe a change in writers? https://www.youtube.com/watch?v=qyZ5qgIABUc
According to the scientists there is no magic fix, the answer will come from fusion or better energy transmission and storage. Whether we can find those solutions before climate change really hits is the big question.