BY SHIFTING to a “wartime footing” to drive a rapid shift toward renewable energy and electrification, humanity can still avoid the
apocalyptic
future laid out in the much-discussed “hothouse earth” paper, a lead author of the paper told The Intercept. One of the biggest barriers to averting catastrophe, he said, has more to do with economics than science.
When journal papers about climate change make headlines, the news usually isn’t good. Last week was no exception, when the so-called hothouse earth paper, in which a team of interdisciplinary Earth systems scientists warned that the problem of climate change may be even worse than we thought, made its news cycle orbit. (The actual title of the paper, a commentary published in the Proceedings of the Natural Academy of Sciences, is “Trajectories of the Earth System in the Anthropocene.”)
Coverage of the paper tended to focus on one of its more alarming claims, albeit one that isn’t new to climate researchers: that a series of interlocking dynamics on Earth — from melting sea ice to deforestation — can feed upon one another to accelerate warming and climate impacts once we pass a certain threshold of warming, even after humans have stopped pouring greenhouse gases into the atmosphere. The best chance we have for staying below that catastrophic threshold is to cap warming at around 2 degrees Celsius, the target enshrined in the Paris Agreement.
That’s all correct and plenty daunting. Yet embedded within the paper is a finding that’s just as stunning: that none of this is inevitable, and one of the main barriers between us and a stable planet — one that isn’t actively hostile to human civilization over the long term — is our economic system. Read More
