They are, apparently, the latest "threat" to the "climate" they have been telling us is "changing" in vague but alarming ways  . . . for the past 50 years.

Over those years, they have had to rebrand this always-imminent (but never-arriving) "change" several times, when it didn't arrive as predicted or the predictions were so obviously wrong that they could no longer be mentioned without triggering snickers – among the intelligent, at least.

The ice age that they predicted was imminent – back in the '70s – never materialized. So they rebranded that, Better-Call-Saul-style, to "global warming" and worked that angle for several decades until the obvious became undeniable and to continue to Al Gore it up became embarrassing to almost everyone, except Al Gore.