The UN's annual climate meetings wrap up in Doha today, and though the feckless agreements are a “delight to no one,” there is one silver lining. Geo-engineering, that grand, scary global experiment of last resort, won “scant enthusiasm” from the vast majority of participants.
“Let's face it, geo-engineering has a lot of unknowns,” Rajendra Pachauri, chairman of the U.N.'s panel of climate scientists, told Reuters.
Christiana Figueres, head of the U.N. Climate Change Secretariat, agreed, emphasizing the need to focus on actual greenhouse gas emissions reductions and mitigation strategies first. “Let's first use what we know,” said Figueres. “There are so many proven technologies we know exist that are tried and true that have not been used to their maximum potential,” she told Reuters. “To begin with, the simplest is energy efficiency.”
Advocates of geo-engineering strategies – which range from tinkering with the planet, the oceans or the atmosphere itself to force cooling in an effort to combat climate change – claimed a breakthrough in the international negations arena in the Cancun climate talks back in 2010. “The taboo is broken,” Paul Crutzen, a Nobel Prize-winning atmospheric scientist who has published on geo-engineering, then told The Associated Press.
That enthusiasm from 2010 seems to be on the wane as opponents of these strategies – including those at the highest levels of leadership in the U.N.'s climate bodies – highlight just how unproven all of these concepts are. Many advocates of real climate change mitigation are also wary of how rich nations could implement these massive, world-changing engineering efforts, the impacts of which are entirely beyond prediction.