听力原文：Stronger typhoons, more flooding in low lying regions, deepening drought -- all possible, if not likely, according to a report from British climatologists. They say 2007 has a 60 percent probability of being the hottest year on record, citing high levels of greenhouse gasses in the atmosphere, and El Nino, now underway in the Pacific and expected to last until May. Temperature studies for 2006 are not yet complete. But the new study, noting that the world's ten warmest years since 1850 have occurred in the past decade, says 2006 is set to be the sixth warmest year globally, and 2007 is likely to set a new all time high. Which of the following is not true of the report from British climatologists?