Centuries of pondering — and squabbling about — trees

Do forests warm or cool the Earth? What’s their effect on global climate change? A comic narrated by polymath Benjamin Franklin describes the evolution of thought on this issue and what we still don’t know.

Unpersuasive: Why arguing about climate change often doesn't work

In the US, where political parties have increasingly staked claims on one side of the issue or the other, beliefs may be more about belonging than facts