The clock is so absurdly precise, showing even the number of seconds its creators say we have left (do they really believe it?) that it lacks credibility. Five years is only someone's estimate or guess. Nobody can accurately predict how many days, hours, seconds (dare I say years) are available to take action. Creating less pollution is one of the reasons I no longer drive. I stopped driving more than 7 years ago and rely heavily on electric transportation (trolleys and trains). I wonder whether the clock's creators are doing as much.