They ask. I answer.
Why are sea otters facing a growing threat from shark attack?
I hold no PhD in physics. Or in climatology. I haven't studied at any of the world's most prestigious colleges or universities. I have yet to have the UNIPCC accept one of my dissertations on the subject. But I'll speak (well, type) for those who have all those crown jewels in their résumés, and who have studied the subject - exhaustively - for decades.
It's global warming.
The learned pedagogues of higher academe have taught me well.
It's global warming. Whenever we don't know, it's global warming.