Well, the 606 was going a bit too fast. I mention again the natural process (weathering of basic minerals), that has captured almost all the CO2 that was ever emitted by volcanoes during the whole existence of our planet. We were happier than our sister planet Venus, because there was no liquid water on that planet, so all that volcanic CO2 was collecting in the atmosphere, which is now a CO2 blanket in which life is impossible. The process Is still capturing CO2, but these days we ourselves are emitting much more than volcanoes do, so CO2 levels are rising. The weathering of basic minerals can be increased fairly simply, because the amount of weathering depends essentially on the extent of the contact of those minerals with water + CO2. This means that the process is scalable, by mining the olivine rock, milling it and spreading the grains, which obviously have a much higher contact surface than solid rock. Regards, Olaf Schuiling
From: [email protected] [mailto:[email protected]] On Behalf Of Charles H. Greene Sent: woensdag 15 maart 2017 10:02 To: [email protected] Cc: Geoengineering; Arctic Methane Google Group Subject: Re: [geo] Record Increase in Air CO2 Hi Greg: Sorry for the typo - it was 406 ppm at MLO last week. Even in Jim Inhofe’s and Scott Pruitt’s wildest dreams, which may coincide with some of society’s worst nightmares, I think it’s unlikely that any of my students will see 606 ppm in their lifetimes. Of course, that doesn’t mean the current administration isn’t trying its best to make it so… Regards, Chuck On Mar 14, 2017, at 10:08 PM, Charles H. Greene <[email protected]<mailto:[email protected]>> wrote: Hi Greg: I was at the MLO last week with my students, and CO2 concentration was 606 ppm. Regards, Chuck On Mar 14, 2017, at 8:40 AM, Greg Rau <[email protected]<mailto:[email protected]>> wrote: https://phys.org/news/2017-03-carbon-dioxide-rose-pace-2nd.html "The two-year, 6-ppm surge in the greenhouse gas<https://phys.org/tags/greenhouse+gas/> between 2015 and 2017 is unprecedented in the observatory's 59-year record. And, it was a record fifth consecutive year that carbon dioxide<https://phys.org/tags/carbon+dioxide/> (CO2) rose by 2 ppm or greater, said Pieter Tans, lead scientist of NOAA's Global Greenhouse Gas Reference Network." GR - If anthro emissions have plateaued, https://www.theguardian.com/environment/2016/nov/14/fossil-fuel-co2-emissions-nearly-stable-for-third-year-in-row why the dramatic increase in CO2? A runaway GH is upon us? Anyway, is it time yet to admit that anthro emissions reduction is failing and to find out if CDR is more than a figment of IPCC's imagination? -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To post to this group, send email to [email protected]<mailto:[email protected]>. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To post to this group, send email to [email protected]<mailto:[email protected]>. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
