The sun’s energy versus mankind is a hypothesis being discussed about the cause of climate change.

With satellites, scientists have measured fluctuations in the sun's energy and found that these recent variations have been small in comparison to human influences in the last several centuries. In fact, there has been no increase in solar energy in the past 50 years. Thus, changes in the sun's energy cannot explain the warming we have seen over the past several decades. In contrast, the warming we are observing is consistent with the warming properties of carbon dioxide and other heat-trapping gases that humans are adding to the atmosphere.With satellites, scientists have measured fluctuations in the sun's energy and found that these recent variations have been small in comparison to human influences in the last several centuries. In fact, there has been no increase in solar energy in the past 50 years. Thus, changes in the sun's energy cannot explain the warming we have seen over the past several decades. In contrast, the warming we are observing is consistent with the warming properties of carbon dioxide and other heat-trapping gases that humans are adding to the atmosphere.

Source, NASA

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