Comments by "Technolus" (@technolus5742) on "His Holiness Pope Francis | Our moral imperative to act on climate change [Italian]" video.
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No dude, rapid change in climate is directly tied to human activity. You should have read the article you posted:
"The radiation output of the Sun does fluctuate over the course of its 11-year solar cycle. But the change is only about one-tenth of 1 percentânot substantial enough to affect Earthâs climate in dramatic ways, and certainly not enough to be the sole culprit of our planetâs current warming trend, scientists say."
"As for Abdussamatovâs claim that solar fluctuations are causing Earthâs current global warming, Charles Long, a climate physicist at Pacific Northwest National Laboratories in Washington, says the idea is nonsense.
âThatâs nuts,â Long said in a telephone interview. âIt doesnât make physical sense that thatâs the case.â
In 2005, Longâs team published a study in the journal Science showing that Earth experienced a period of âsolar global dimmingâ from 1960 to 1990, during which time solar radiation hitting our planetâs surface decreased. Then from the mid-1990âs onward, the trend reversed and Earth experienced a âsolar brightening.â
These changes were not likely driven by fluctuations in the output of the Sun, Long explained, but rather increases in atmospheric clouds or aerosols that reflected solar radiation back into space."
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