largest recorded wildfire in state history. nbc news talked to some of those in its path, who lost almost everything. >> it's devastation, just killed me. >> let's bring in josh lederman outside the u.n. this has real world impacts. you spoke with the vice chair of the intergovernmental panel on climate change. what did she tell you? >> reporter: let's start with the bad news, i promise i will not leave you in doom and gloom. according to the new report from more than 230 authors, no matter what we do at this point, our future is going to be hotter than it is right now. according to these scientists we've already seen more than a degree celsius of human-caused global warming and over the coming decades, there's no scenario they looked at where we do not at least temporarily surpass that 1.5 degrees celsius