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 to cleaner, less damaging energy sources (Bova).
However, Edmund Contoski, who is a retired environmental consultant and real estate developer, states that global temperatures have decreased since 1998, which means so-called global warming is a myth. 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...