NASA scientists say that cirrus clouds formed by contrails increased surface temperatures enough to account for all the warming that took place in the United States between 1975 and 1994. This totally ignores major global warming causes like changes in ocean currents, which have been observed by NASA’s own satellites. This statement may be a result of government pressure on NASA to discredit the upcoming film The Day After Tomorrow.
NASA’s Patrick Minnis says, “This result shows the increased cirrus coverage, attributable to air traffic, could account for nearly all of the warming observed over the United States for nearly 20 years starting in 1975, but it is important to acknowledge contrails would add to and not replace any greenhouse gas effect. During the same period, warming occurred in many other areas where cirrus coverage decreased or remained steady.”
Contrails form when the water vapor in the aircraft exhaust condenses and freezes. Global warming means that the lower atmosphere is warmer which causes the upper atmosphere, where planes fly, to be colder, so more and longer-lasting contrails are being formed. Contrails can turn into cirrus clouds that trap heat and warm the Earth even more. Minnis does admit that global warming is affected by humans and is not entirely a natural phenomenon. He says, “This study demonstrates that human activity has a visible and significant impact on cloud cover and, therefore, on climate. It indicates that contrails should be included in climate change scenarios?This study indicates that contrails already have substantial regional effects where air traffic is heavy, such as over the United States. As air travel continues growing in other areas, the impact could become globally significant.”
To get the science behind the film, read The Coming Global Superstorm by Art Bell & Whitley Strieber. To get an autographed copy of the novelization, which is getting great reviews, click here.
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