Ben Bova, a prolific science fiction author who used to work for NASA, claims that global warming is a real phenomenon. According to some measurable scientific facts, he strengthens his point that the temperatures of earth are rising and it is mainly caused by human activities (Bova). Therefore, Bova believes that we should lower greenhouse-gas emissions and spare no efforts to move from fossil fuels …show more content…
He denies the connection between carbon dioxide and rising of temperatures. Furthermore, he claims that human-made emissions are insignificant when compared to the carbon output of natural sources (Contoski).
As far as I am concerned, I am in favor of the opinion of Ben Bova that the existence of global warming is an undeniable truth. According to CurrentResult.com, a science research website, the annual average temperature keeps on increasing each decade. In the1880s, the global mean annual temperature was 56.71ᵒF, but in the 2000’s, the global mean annual temperature has increased to 58.12ᵒF (Current Result). This has proven that the earth temperature is really increasing instead of decreasing like Edmund Contoski claimed.
Also, Edmund Contoski has denid the relationship between carbon dioxide and the temperature. I disagree with his view. According to the CurrentResult.com, there were 21.6 billion tons of carbon dioxide emissions in 1991 and 27 billion tons of carbon dioxide emission in 2005. During this period of time, the global temperature has increased from 57.52ᵒF to 58.12ᵒF. This suggests that the emission of carbon dioxide may directly lead to the greenhouse effect that causes global