Global Warming Essay Example | Topics and Well Written Essays - 250 words - 7

Global Warming - Essay Example rs, and predominantly over the past 50 years.   Indeed, greenhouse gases have very probable caused more warming than has been detected, which is attributable to the off-setting cooling result from aerosol emissions by human. Huber and Knutti’s find that if the same trend persist, we will reach 2 °C above pre-industrial levels in the next few decades. According to National Climatic Data Center (NCDC) research in the United State, conducted in 2010, there was a finding that the ecosphere or the world can warm or cool, without any human interventions. The notion that global warming is a normal and a natural cycle is well stipulated from paleo data. This data covers the past one million years. According to these research for the past one million years the ordinary and natural climate has wavered from warm periods then ice ages. This fluctuating in and out of warm eras and ice ages is interrelated sturdily with Milankovitch phases. With the purpose of understanding the dissimilarity between natural cycle and human-caused/subjective global warming, one needs to reflect on variations in radiative coercing and how this affects systems on the globe such as the ocean chemistry, atmosphere, ice and snow, vegetation and ocean heat content inversion cycles and linked effects. The present radiative coercing levels are obviously outside of the realm of natural cycle array. The article by Huber and knutti is more convincing and conclusive as the research methodology used are clear and over a short period of time compared to the later which the data is collected from unreliable observations and assumptions over the last one million