Re: [geo] New Scientist

2018-04-23 Thread William Calvin
Subglacial water that greases the skids could be removed in some cases merely by drilling a well to create a fountain. Some of that impounded water has lost its input path, allowing pressure to build up as the ice moves downhill. The pressure will force it up into cracks in the base ice,

Re: [geo] 2. What are some potentially false 'memes' related to solar geoengineering?

2014-08-18 Thread William Calvin
The appropriate rejoinder is often Compared to what? For example, What if the application is not spatially uniform? Uneven application results in uneven cooling, therefore pressure differences, therefore new winds are generated. Assuming spatially homogenous effects glosses over all that

Re: [geo] Restorative Ocean Geoengineering

2014-02-24 Thread William Calvin
Excellent presentation, Robert. Re sinking bags of algae into deep ocean: rotting-to-CO2 happens fast. A lot in a week. If bag is sealed, hypoxia means much methane. The idea (2nd half of my push-pull pump) is to sink the new carbon compounds before this happens, so CO2 is produced in the depths

Re: [geo] What Would Heidegger Say About Geoengineering? Clive Hamilton | ANTHEM

2014-01-19 Thread William Calvin
But philosophical and scientific approach must watch out for the hazards of reification, as when emissions became a rate when most people think it a quantity. The terms one picks may frame the whole discussion, as has happened with global warming becoming the planet's near-surface air temp