On my hunting property here in Oklahoma I have black jack oaks and almost zero acorns this year after three years of heavy crops of acorns. Three years in a row of heavy acorns is almost as unusual as one year of no acorns. It generally runs in alternate years. Heavy acorns one year and few acorns the next. I have burr oaks in my yard and they had a few acorns on them. Another variety of oak had none. I expect the black jack will have lots of acorns next year.

My guess is that CNN may be trying to tie something like this with global warming or something like that. Trying to scare us into thinking the world is coming to an end.