|  | |  |  | Scientists blame Hollywood for increased fears over global warming 
 Leading   climate change experts have thrown their weight behind two scientists   who hit out at the "Hollywoodisation" of global warming.
 
 Professors   Paul Hardaker and Chris Collier, both Royal Meteorological Society   figures, criticized fellow scientists they accuse of "overplaying" the   message.
 
 The pair spoke at a conference in Oxford today entitled   Making Sense of Weather and Climate and organized by Sense about   Science, a scientific trust set up to help dispel the myths surrounding   polemic issues such as climate change.
 
 They sparked controversy   after saying statements made by the highly respected American   Association for the Advancement of Science (AAAS) were not justified.
 
 The   AAAS said last month: "As expected, intensification of droughts,   heatwaves, floods, wildfires, and severe storms is occurring, with a   mounting toll on vulnerable ecosystems and societies.
 
 "These events are early warning signs of even more devastating damage to come, some of which will be irreversible."
 
 Professor   Collier said that while he is not skeptical that such events could   happen, it is important to be "honest" about the scientific evidence   behind projected future impacts.
 
 He said that while there is "no   doubt" that climate change is happening and is to an extent man-made,   it is not yet proven by isolated climatic events such as the Boscastle   floods.
 
 He said: "I think the AAAS are including everything in one pot and I think there is a time to do it.
 
 "There   is always a danger of crying wolf. We have to be careful as scientists   that we present the facts and don't exaggerate things because it can   undermine credibility in the long term."
 
 Professor Hardaker   warned against the "Hollywoodisation" of weather and climate seen in   films such as the 2004 smash hit film The Day After Tomorrow, which   depicts terrifying consequences after the melting of the Arctic ice   shelf.
 
 Such films, he said, only work to create confusion in the public mind.
 
 "I don't think the way to make people pay attention is to make them afraid about it," he said.
 
 "We   have to help them understand it and allow them to make choices -   because the impact of climate change is going to mean we have got some   quite difficult choices to make both in policy and as members of the   public.
 
 "Unless we can understand the science behind it, we can't be expected to get our heads around making these difficult choices."
 
 Presenting   events such as the shutting off of the Gulf Stream, creating a cooling   effect, and the rise of temperatures together could be "confusing", he   said, unless it is made clear that the former is far less likely than   the latter.
 
 He said the scientists should avoid being forced to   make wild predictions about the future in response to climate change  skeptics such as those seen in Channel 4's recent program, Global   Climate Swindle.
 
 He said: "We must be careful not to  sensationalize our side of the argument or Hollywoodise the argument   otherwise you end up in an ever increasing cycle of claim and   counter-claim.
 
 "We have to be clear about what our level of   understanding is and to be clear about where we are making judgments  based on understanding."
 
 Their comments were backed today by other leading figures in the debate.
 
 Dr   Peter Stott, manager of understanding and attributing climate change  at  the Hadley Centre for Climate Change, said he believes scientists  have  to make it clear there is a long way to go until we know how bad  climate  change will be.
 
 He said: "There is a lot more research  to do to  understand about exactly what effects its going to have on you  and me  in the future."
 
 He said that while he welcomed a  growing public  awareness about the dangers brought about by films and  headlines,  informed debate was vital.
 
 "I think it is important  that having  said there is a problem, it would be unfortunate if people  got the  impression that there's nothing we can do about it because  there is a  lot we can do to change the future of climate change," he  said.
 
 Professor  Tim Palmer, of the European Centre for Medium  Range Weather Forecasts,  called for better technology and computers to  be developed to help  climatologists to predict the future more  precisely.
 
 He said: "There are still big scientific uncertainties such as how is the weather going to change with global warming.
 
 "My personal view is that we do need to start thinking in an international way."
 
 Tracey   Brown is the director of Sense About Science, which has also produced a   booklet bringing together key scientists to help explain in layman's   terms the main issues in the debate.
 
 She said she "sympathized"   with the professors' comments, saying uncertainty can often be   "manipulated" to generate outlandish ideas about the issue.
 
 "It's   very important for scientists to be clear with the public - we have   learned that lesson with many scientific issues," she said.
 
 But she added that it was important not to downplay the potentially "catastrophic" results of climate change.
 
 She   said: "The kind of figures were are talking about here today show that   weather is already a bigger killer than global terrorism. What seems a   small change on a graphic can have catastrophic effects on people's   lives.
 
 "It's not shock tactics to talk about it as a killer."
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