come in part from the countries that cause most of the problem. and that is nowhere near happening yet. and that is nowhere near happening yet- and that is nowhere near happening yet. and that is nowhere near hauenina et. , , happening yet. very briefly you do sa in happening yet. very briefly you do say in your happening yet. very briefly you do say in your twitter - do say in your twitter biography you are an optimist can you give us a reason for optimism going forward? i think that when people optimism going forward? i think that when people are optimism going forward? i think that when people are really - optimism going forward? i think that when people are really up | that when people are really up against it, they can be very creative. and i have real hope a lot of smart people working on this problem and a lot of people that really care about this, that realised this thing is going to impact our lives, more extreme weather more crop failures, people are going to leave thei