Geoengineering can save Greenland, model suggests

We recently witnessed a new Greenland melting record. And according to a new paleoclimate comparison by James Hansen we could be in for meters of sea level rise within this century, due to expected non-linearity of the melting process.

Geoengineering La Niña

According to the WMO the current La Niña episode will continue to exist for at least another 2-4 months. Other sources state it may last until 2012. This La Niña could be the strongest in decades and is likely to … Continue reading

Getting practical on geoengineering: the cheapest way to lift 1 Mt of aerosols

Aurora Flight Sciences recommends Aurora Flight Sciences. At least that’s what David Keith, Climate Professor at the University of Calgary and a leading expert on geoengineering leads to suspect in their joint cost analysis, published three weeks ago.

After Copenhagen: Cancún, Kyoto… or Montreal?

Chlorofluorocarbons are up to 11,000 times as potent as greenhouse gases as CO2. The Montreal Protocol locked away some 4 years of regular CO2 emissions. And if we try really hard – and look for every old fridge on the … Continue reading

Geoengineering vs ‘extreme geoengineering’

Current proposals for geoengineering, measures to directly influence parts of system Earth, like the global climate system, seem overestimated – with respect to their proclaimed beneficial outcomes. Last month science magazine PNAS published an overview of some of the better … Continue reading