Abstract
This paper is a study to understand how climate changed last fifty years. There are two theories: the first one considers the solar variability and the influence of those alterations on climate; the second one blames human activity and the consequences on temperatures and disruption on the environment created by humans. Our conclusions pointed out that dimensions involved between Earth and Sun, and Earth/Atmosphere the second one can disturb the temperature on Earth’s surface and make seasonality variations impossible to be explained only by Sun/Earth connections.
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