"Theories" is putting it mildly! It's speculation in the extreme, while the greenhouse gases premis is mistaken: air temperature rises before gas levels rise.
Whatever shall cause the environmental disintegration predicted by Peter's Epistle, it won't be man-made elements. Concern for looking after natural resources is fine, but Jesus commissioned the gospel message, not these other issues, as of chief importance.
They can help, proportionately, like the health message does, to introduce God's point of view, but mankind isn't to blame for global warming.