By Sean Mowbray The first ever pulse check of the planet’s health shows that the Earth is far beyond it’s safe operating space for humanity. Six of nine key planetary boundaries are already transgressed, and continue moving deeper into risk zones that could threaten our planet’s habitability. A seventh boundary, ocean acidification, is on the verge of transgression and may exceed safe limits in a matter of years. That’s according to the first-ever Planetary Health Check, a nearly 100 page report produced by the new Planetary Boundaries Science (PBScience) initiative led by Earth System scienti…