Comparing and contrasting natural versus anthropogenic climate changes
Anthropogenic climate change primarily refers to the creation of green-house gases which are emitted because of human activity. By investigating polar ice cores, scientists are persuaded that the activity of humans have boosted the ratio of green-house gases in the surroundings that have sky-rocketed over past hundred years. But natural climate is the change which is happening because of the normal changes in the environment. Naturally, the change in climate is referring to a constant variation in the weather all around the globe; however, it can be limited to an area.
Human activities can cause the anthropogenic climate change, like changing land for agriculture and forestry, and fossil fuel burning. From the starting of Industrial Revolution, these human activities have increased. Additionally, to other impacts of environments, these activities alter surface of the land and release various materials into the environment. As a result, these can affect the quantity of energy arriving and out-going. Moreover, it casts cooling as well as warming effects on the climate. The major fossil fuel combustion product is the CO2, which is a gas of greenhouse. The total effect of human activities from the Industrial Revolution is a warming effect determined mainly because of the carbon dioxide emissions and increased by the other emissions of green-house gases.
The climate of the earth is affected by natural factors as well, which are external to the system of climate, like alterations in activity of volcano; output of the sun; and the orbit of Earth around the Sun. The two features suitable on the time-scales of current climate change are variations in the activity of volcano, and variations in the solar radiation. In the energy balance of the earth, these features majorly affect the quantity of arriving energy. The volcanic eruptions are periodic and have comparatively temporary effects on the climate. Solar irradiance variations have added to the climate fashions from the past century. The effect of green-house gases contributions into the atmosphere has been 10 times that of variations in the output of Sun, since the Industrial Revolution.
The similarity between natural climate change and anthropogenic climate change is that they both are contributing to global warming. They both are causing global warming. Volcanic emissions, solar activity, and gases of green-house, encompassing those from the activities of human, all influence the energy and radiation balance of the Earth. Changes in ...