The link you gave does not say the problem isnt man made. It shows that climate chage may have unexpected and severe and FAST consequences. IE warming causes more freesh water flow to the atlantic currents leading to decreased salinity and a stoping the transfer of heat from the trpics to europe.
Dont get me wrong - I thought the link was great , a very good show - But they were not denighing warming was taking place, and although they were saying that this has happened in the past they did not mean that we have not set the ball rolling on this occasion. In fact I think they wisely avoided that particular point.
