What is common knowledge in your field but shocks outsiders?

More than half the CO₂ emissions of the industrial age have been dumped into the atmosphere since 1990.

@davidho Bleeding is stanched, not staunched; two spaces after a period is now passé—one is correct; editors accept manuscripts with with errors and typos all the time—it’s the quality of the writing that counts.

@thelmadonna @davidho

Nah, two spaces after a sentence is good. I like the clarity.