Natural culling of the pod perhaps.
If you're a true believer in the religion of climate change, you conveniently have built-in explanations for anything and everything that doesn't go according to your world-view.
Don't be surprised when the Left to blames these whale deaths on climate change....human-caused climate change.
So it's not Mother Nature that caused these beached whales to die. It was your conservative neighbor who BBQs and drives a big SUV.
The Left is pretty busy right now blaming Trump for anything and everything that doesn't go according to their world-view.
I'm sure they'll get around to combining the two issues by blaming Trump for climate change getting worse and killing the dead whales. They're good at the blame game.
you forgot left blaming on sonar and/or shipping