Our ability to adapt so even more than our intelligence it will be our ability to adapt that gives us hope I mean take it straight to Darwin the species that survives isn't the most intelligent one it's the one that is able to adapt. Our values can change you know the clean air act clean water when we want something change for sustainability we can do it as a species and as a society and intelligence yes but especially for the u.s. innovation  I think it's hard to predict exactly what breakthroughs will happen but we've so far found a way to keep it all going, she says.