The Effect of Greenhouse Gas on Warming - Essay Example

Indeed, greenhouse gases have probably caused more warming than has been detected, attributable to the off-setting cooling resulting from human aerosol emissions. Huber and Knutti find that if the same trend persists, we will reach two °C above pre-industrial levels in the next few decades.

According to National Climatic Data Center (NCDC) research in the United States 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 natural cycle is well stipulated from paleo data. This data covers the past one million years. According to this research, the ordinary and natural climate has wavered from warm periods and ice ages for the past one million years. This fluctuating in and out of warm eras and ice ages is interrelated with the Milankovitch phases.

To understand the dissimilarity between the natural cycle and human-caused/subjective global warming, one needs to reflect on variations in radiative coercing and how this affects systems 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 outside of the realm of the natural cycle array.

The article by Huber and knitting is more convincing and conclusive as the research methodology used is clear and over a short period compared to the latter which the data is collected from unreliable observations and assumptions over the last one million years.