Shinichiro Asayama & Mike Hulme, “Engineering climate debt: temperature overshoot and peak-shaving as risky subprime mortgage lending”
Climate Policy (forthcoming)
"Despite the ambitious temperature goal of the 2015 Paris Agreement, the pace of reducing global CO2emissions remains sluggish. This creates conditions in which the idea of temperature ‘overshoot and peak-shaving’ is emerging as a possible strategy to meet the Paris goal. An overshoot and peak-shaving scenario rests upon the ‘temporary’ use of speculative solar radiation management (SRM) technologies combined with large-scale carbon dioxide removal (CDR). Whilst some view optimistically the strategic interdependence between SRM and CDR, we argue that this strategy comes with a risk of escalating ‘climate debt’. We explain our position using the logic of debt and the analogy of subprime mortgage lending. In overshoot and peak-shaving scenarios, the role of CDR and SRM is to compensate for delayed mitigation, placing the world in a double debt: ‘emissions debt’ and ‘temperature debt’. Analogously, this can be understood as a combination of ‘subprime mortgage’ (i.e. large-scale CDR) and ‘home-equity-line-of-credit’ (i.e. temporary SRM). With this analogy, we draw some important lessons from the 2007–2009 US subprime mortgage crisis. The analogy signals that the efficacy of temporary SRM cannot be evaluated in isolation of the feasibility of large-scale CDR and that the failure of the overshoot promise will lead to prolonged peak-shaving, masking an ever-rising climate debt. Overshoot and peak-shaving scenarios should not be presented as a secured feasible investment, but rather as a high-risk speculation betting on insecure promises. Obscuring the riskiness of such scenarios is a precipitous step towards escalating a climate debt crisis."
A technofix for the climate? Marine geoengineering (video)
The Dangerous Belief That Extreme Technology Will Fix Climate Change
"It boils down to a failure to question capitalism, civilization, and the notion of progress."
Richard Conniff, “Why Green Groups Are Split on Subsidizing Carbon Capture Technology?”
M.B. Gerrard & T. Hester, Climate Engineering and the Law: Regulation and Liability for Solar Radiation Management and Carbon Dioxide Removal
Developing nations to study ways to dim sunshine, slow warming
China needs more water. So it’s building a rain-making network three times the size of Spain
Geoengineer polar glaciers to slow sea-level rise
"Stalling the fastest flows of ice into the oceans would buy us a few centuries to deal with climate change and protect coasts, argue John C. Moore and colleagues."