mr. whitehouse: the warnings, mr. president, are serious. they come from some of our foremost financial experts. so let's walk through what we have in store if we keep sleepwalking through the climate crisis. warning one, as i said, coastal property value crash. freddie mac, not an environmental organization, the giant mortgage company, warned that rising sea levels will prompt a crash in coastal property values worse than the housing crash that triggered the 2008 financial crisis. first street foundation found that rising seas have already caused $16 billion in lost property values in coastal homes from maine to texas. moody's, the bond rating agency, has warned that climate risk will trigger downgrades in coastal communities bond ratings black rock, the biggest asset manager in the world, estimated that by the end of the century, climate change will cause coastal communities annual losses averaging up to 15% of local g.d.p. averaging up to 15% of local g.d.p. with hardest-hit communities obviously hit far worse. hello, florida. warning two