Changes

The observed widespread warming of the atmosphere and ocean, together with ice-mass loss, support the conclusion that it is extremely unlikely that global climate change of the past 50 years can be explained without external forcing, and very likely that is not due to known natural causes alone."<ref>Borenstein, Seth (2007), "Warming 'Likely' Man-Made, Unstoppable." Associated Press, as published by Forbes[http://www.forbes.com/feeds/ap/2007/02/02/ap3388409.html]</ref>

The observed widespread warming of the atmosphere and ocean, together with ice-mass loss, support the conclusion that it is extremely unlikely that global climate change of the past 50 years can be explained without external forcing, and very likely that is not due to known natural causes alone."<ref>Borenstein, Seth (2007), "Warming 'Likely' Man-Made, Unstoppable." Associated Press, as published by Forbes[http://www.forbes.com/feeds/ap/2007/02/02/ap3388409.html]</ref>

Al Gore's film [http://imdb.com/title/tt0497116/usercomments?start=60 An Inconvenient Truth] (already available on DVD that was reviewed by experts {{fact}} and in [http://www.amazon.com/Inconvenient-Truth-Planetary-Emergency-Warming/dp/1594865671 book format]) has recently been challenged by an entertaining and informative documentary on Channel 4 in the UK entitled "The Great Global Warming Swindle".<ref>  http://www.channel4.com/science/microsites/G/great_global_warming_swindle/index.html</ref>. Despite the popularity of the Channel 4 documentary, experts claim it has flaws and scientists appearing in it complained that they have been misled.<ref>http://www.realclimate.org/index.php/archives/2007/03/swindled-carl-wunsch-responds/</ref>

Al Gore's film [http://imdb.com/title/tt0497116/usercomments?start=60 An Inconvenient Truth] (already available on DVD that was reviewed by experts {{fact}} and in [http://www.amazon.com/Inconvenient-Truth-Planetary-Emergency-Warming/dp/1594865671 book format]) has recently been challenged by an entertaining and informative documentary on Channel 4 in the UK entitled "The Great Global Warming Swindle".<ref>  http://www.channel4.com/science/microsites/G/great_global_warming_swindle/index.html</ref>. Despite the popularity of the Channel 4 documentary, experts claim it has flaws and scientists appearing in it complained that they have been misled.<ref>http://www.realclimate.org/index.php/archives/2007/03/swindled-carl-wunsch-responds/</ref> Also, the maker of the great global warming swindle is a well-known radical communist who often distorts facts and intentionally misrepresents scientists views. An MIT professor, shown in the documentary, is considering legal action against the radical marxist for misrepresenting the professor in question.