Earth on brink of 'irreversible' collapse of global ecosystem, new SFU study warns

“It’s the point of no return,” Dr. Arne Mooers says, emphasizing his words calmly with his hand. “You push, and suddenly – ‘Whoosh!’”

The evolutionary biologist’s hand suddenly plummets, as off a cliff. “We don’t know how fast the transition would be,” he adds, pausing. “No idea.” Continue reading.