Earth’s cornucopia of life has evolved over 550 million years. Along the way, five mass extinction events have caused serious setbacks to life on our planet. The fifth, which was caused by a gargantuan meteorite impact along Mexico’s Yucatan coast, changed Earth’s climate, took out the dinosaurs and altered the course of biological evolution.
Today nature is suffering accelerating losses so great that many scientists say a sixth mass extinction is underway. Unlike past mass extinctions, this event is driven by human actions that are dismantling and disrupting natural ecosystems and changing Earth’s climate.
My research focuses on ecosystems and climate change from regional to global scales. In a new study titled “A Global Deal for Nature,” led by conservation biologist and strategist Eric Dinerstein, 17 colleagues and I lay out a road map for simultaneously averting a sixth mass extinction and reducing climate change.
We chart a course for immediately protecting at least 30% of Earth’s surface to put the brakes on rapid biodiversity loss, and then add another 20% comprising ecosystems that can suck disproportionately large amounts of carbon out of the atmosphere. In our view, biodiversity loss and climate change must be addressed as one interconnected problem with linked solutions.
Source: To solve climate change and biodiversity loss, we need a Global Deal for Nature : The Conversation