My latest writing assignment was pretty interesting. I had to write a cause and effect essay.So I just had to post it. Just so you know, I really really like airplanes, especially fighters.  

Did you know that airplanes can predict the weather? Contrails are white streams that come out of the end of jet engines.  When they are thin and short lived that indicates low humidity at high levels. That means fair weather. On the other hand, a thick contrail means stormy weather. Contrails affect the temp on earth.

                 Contrails affect the temperature by blotting out the sun. This lowers the temperature.  Contrails can last for many hours. They are hard to study because there are either too many crisscrossing or don’t last long enough. 9/11 was a good time to study contrails, with all the planes grounded. In fact, on a NASA satellite picture, the only contrails seen on September 12 were the ones from Air force 1 and some escort fighters.  

              So, in conclusion, contrails are a type of pollution, but are helpful in figuring out the weather! Contrails are bad but I think they look cool.

                

                              You see B-52s doing that all the time. See you!

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