Scientific consensus that humans are causing global warming is estimated to have passed 99 percent, but classrooms remain caught in the political crossfire. Here's a closer look at the debate in Idaho.

Scientific consensus that humans are causing global warming is estimated to have passed 99 percent, but classrooms remain caught in the political crossfire. Here's a closer look at the debate in Idaho. https://t.co/sKur8UFFRh

— FRONTLINE (@frontlinepbs) December 23, 2019