three sources that verify the fact: 1st source: http://cei.org/pdf/ait/chI.pdf. Author of source: Lewis Marlo. Credentials in the source: Bulletin of the American Meteorological Society, Roger Pielke Sr. , Davison E. Soper, Institute of Theoretical Science, University of Oregon, Rasmus Benestad, and Ray Pierrehumbert. It is a credible source because it has scientific words, scientific sources where they got their information, and a MLA format. The source says that my fact is true because throughout time and even now people are changing the atmosphere. I do believe the source because it has data that I know and data that was talked about in the movie.
2nd Source: http://openlearn.open.ac.uk/mod/resource/view.php?id=172075. place that Author wrote this at: Open University. There is only one credential. It is the professor who typed all this and posted it and probably has a degree for teaching this kind of stuff in college. I think it is a trustworthy source because it has pictures of the Earth, credentials(not specific ones), the information comes form a university, the parts of the information is in sections like 1 section, 1.2 section, 1.3 section, etc, just like I have at North in my school textbooks. The source says that the atmosphere is thin enough for humans to change that, and we humans do that because what we do with emissions gives higher altitude which effects the atmosphere. I believe the source because I think universities have very knowledgeable information on things like this and the information says in its own way that humans cause changes to the atmosphere which is the fact I am checking.
3rd Source: http://climate.jpl.nasa.gov/causes/. The article that is the source was written by Erik Conway, Randal Jackson, and Rosemary Sullivant. The credentials that this source has is Michael Gunson ( Scientist, and Science advisor) and the Science Consultants( Michael Gunson's assistants) William Patzert, Michelle Santee, Margaret Srinavasan, Joshua Willis, and Karen Yuen. The source is credible because the article was done by scientists and if there is one type of profession in the world that could answer stuff like questions about Global Warming, it would be scientists. The source says that humans do cause a change in the atmosphere because the atmosphere is thin and very delicate. The article doesn't say it in that order but that is there message. I believe the source because I trust scientists and it has credits of people who worked on the website like manager of the website, the writers of the article, the scientists and the scientist's assistants, and even the people who took photos that they used in the article.
At this point in this post I have checked the fact"Is the Atmosphere thin enough for humans to change it?", and I have come to find that the fact is true. I believe this because the three sources I chose for this fact had scientific words that were used to explain the points of the articles, credentials, the sources were credible, and each source said in their own way that the atmosphere is thin and delicate and that humans are responsible for changing the atmosphere, and even humans who aren't alive anymore.
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