Outstanding episode of the brilliant Climate Town series explores the penetration of fossil fuel propaganda, masquerading as “educational materials”, into public schools.
Climatetown turns us on to the oil industry’s faux “Bill Nye” knock off , – “Labtime with Leo” – truly a journey thru a hellish alternative universe.
Example episode below.

It seems the Heartland Institute is still promoting climate denial to school teachers. But their recent effort is considerably scaled back from the 2016-17 campaign that was ridiculed in this video.
Here is an article from Grist (reprinted in Gizmodo)
https://gizmodo.com/heartland-institute-sends-8-000-teachers-climate-denial-1850077393
Painfully reminiscent of Christian Fundamentalist Creationists to undermine science education related to evolution.
(As someone who first learned of biological evolution in Catholic school, I tried to point out to Creationists that much bigger threats to their beliefs were cognitive science, anthropology, world history and comparative religions.)