‘Scientists urge global ‘wake-up call’ to deal with climate change’: (sorry, more science i’m afraid)
http://www.theguardian.com/environment/2015/feb/10/geoengineering-should-not-be-used-as-a-climate-fix-yet-says-us-science-academy
Climate change has advanced so rapidly that the time has come to look at options for a planetary-scale intervention, the National Academy of Science said on Tuesday.
The scientists were categorical that geoengineering should not be deployed now, and was too risky to ever be considered an alternative to cutting the greenhouse gas emissions that cause climate change.
But it was better to start research on such unproven technologies now – to learn more about their risks – than to be stampeded into climate-shifting experiments in an emergency, the scientists said.
With that, a once-fringe topic in climate science moved towards the mainstream – despite the repeated warnings from the committee that cutting carbon pollution remained the best hope for dealing with climate change.
“That scientists are even considering technological interventions should be a wake-up call that we need to do more now to reduce emissions, which is the most effective, least risky way to combat climate change,” Marcia McNutt, the committee chair and former director of the US Geological Survey, said.
Asked whether she foresaw a time when scientists would eventually turn to some of the proposals studied by the committee, she said: “Gosh, I hope not.”
The two-volume report, produced over 18 months by a team of 16 scientists, was far more guarded than a similar British exercise five years ago which called for an immediate injection of funds to begin research on climate-altering interventions.
The scientists were so sceptical about geo-engineering that they dispensed with the term, opting for “climate intervention”. Engineering implied a measure of control the technologies do not have, the scientists said.
But the twin US reports – Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration and Climate Intervention: Reflecting Sunlight to Cool the Earth – could boost research efforts at a limited scale.
The White House and committee leaders in Congress were briefed on the report’s findings this week.
Bill Gates, among others, argues the technology, which is still confined to computer models, has enormous potential and he has funded research at Harvard. The report said scientific research agencies should begin carrying out co-ordinated research.
But geo-engineering remains extremely risky and relying on a planetary hack – instead of cutting carbon dioxide emissions – is “irresponsible and irrational”, the report said.
Pretty certain ‘prevention better than cure’ should be the MO here. Once we’ve screwed it up, it’s going to stay screwed for a good long while (and see you in the New Stone Age (which i’m kinda looking forward too)).