Climate Assignment Example | Topics and Well Written Essays - 500 words

Climate - Assignment Example The main theme of this article is to offer detailed information regarding the harassment of the weather scientists by various sections of society, especially the fossil fuel industry. Since the scientific community has identified exploitation of fossil fuel as the main reason for global warming, this section of society has been prosecuting them on various levels, in spite of mounting evidence. Climate change can be broadly defined as the long-term time period shift in weather statistics including the average climate (NOAA, 2007). One of main concerns in environmental study is global warming with the continuous increase in temperature all over the world. It is also one of the topics that are hotly debated between various sections of the modern society (US National Academy of Sciences & the Royal Society, 2008). Mann begins by saying that weather scientists who are working in this area are gathering mounting evidences regarding the increase of surface warming all over the world. One such source is the thermometers that are monitoring the changes in hundreds and thousands of locations all over the world and recording those changes at a permanent location. The scientists are also getting indirect estimates from such sources as the ice cores as well as tree rings; for calculation of change in temperature during past years (US National Academy of Sciences & the Royal Society, 2008). Since last few decades, there are many theories that seek to explain the reason of the global warming such as the cycle of sun spots and changes in Earth climate, natural variability of the climate or changes due to human activity. Mann states that as per some climatologists, the main source of global warming is the sun spots and the 11 year Sun–cycle. The energy output of the Sun varies considerably depending on the abundance of some isotopes of beryllium or carbon atoms and number of sunspots. But, as per the evidence that