Dave compared two articles that talk about global warming in his blog post. Global warming is an ongoing debate on how the earth’s climate is changing. He shows us two images from two different years that were created using microwave imagers. The first article he uses is one from NASA that states the ice caps are melting. In the article it says that the ice caps are shrinking approximately nine percent per decade. The article goes on to talk about how the world is slowly warming and what causes this exactly. It also states what the effects may be if the ice caps completely melt including positive and negative effects. The second article comes from globalwarminghoax.com so that right there makes it less credible than NASA because NASA is well known around the world and this is a website that anyone can have access too. It talks about how scientists have look at satellite photos and have determined that the ice cap is not shrinking, and that in fact it is growing. The article states that the ice caps have increased from 15.9 million square kilometers in 1979 to 16.3 million square kilometers in 2009. This article has no scientific backing and doesn’t state its sources.
The first article is much more convincing and I believe everything it says, whereas that second article seems to be more someone saying their opinions than actual facts. The article from NASA doesn’t seem to be biased or trying to convince me of anything it just seems to be telling me scientific facts where as the second one talks about how the scientific community is wrong and that everyone should believe the writer. After reading these two articles my opinion on global warming hasn’t changed much. I had already trusted that the ice caps were melting and now after reading the articles I still believe that.
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