Catastrophic Anthropogenic Global Warming (CAGW)
I do not deny that there has been a measurable warming of global temperatures since the end of the 19th century.
I do not deny that carbon dioxide is a "greenhouse gas" that must contribute in some measure to the warming.
I do not believe that the amount of warming caused by human industry is going to be catastrophic.
I know that the scope of papal infallibility does not extend to deciding matters of fact that have no bearing on the dogmas of the Church.
References
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