joining me is michal nachmany, policy analyst with the grantham institute for climate change.erything we already know about climate change is happening, even to the biggest economy in the world, and if that biggest economy does not take active measures to mitigate the effect of climate change and to deal with the disasters already coming, severe effects would be brought up on american families and businesses. the term of a us president is comparatively short, four years, but it is possible he could stand for a second term, and donald trump is clear he does not believe in man—made climate change. in the absence of that push at the top, what can be done at another level to in the us to try to reduce this? president trump's approach has not seeded down to national and local governments in the us, which is encouraging. we see action at all levels in the us. we see new york city deciding earlier this year to divest its pension fund and to take the fossil fuel industry to court, over damages concerning hurricane sandy. we can see enormous action that can be taken by citizens the wor