One thought on “Sea Ice Extent (Global Antarctic and Arctic) – Day 158 – 2020”
Compress waste CO2 into dry ice, load up a few disused oil tankers, and dump all of it into the Arctic Ocean to seed ice growth. 1-kg blocks dumped overboard would continue to cool to a depth of probably 100-meters, and stretched over a distance of a few hundred kilometers, it’s conceivable that such an effort (extremely limited in cost) would result in either a rapid increase in ice growth at the start of the season in October, or extend growth during the late winter/early spring (Mar-Apr). The greater the ice extent, the greater the probability of allowing ice formation to compact and increase sea ice volume.
CO2 is going to be expelled into the atmosphere anyway, and the majority of it goes into the ocean to begin with. A plan such as the one described above would—thanks to the colder baseline Arctic water temperatures—allows greater CO2 absorption and retention than if dumped into the tropical regions (which ultimately needs to transfer latent heat gain towards the poles anyway) while reducing Arctic sea surface temperatures and perhaps, add to ice extent. The greater the extent during the summer months, the more albedo effect reflecting solar insolation back into outer space. Antarctic extent is a non-starter thanks to the size of the continent itself, but open waters of the Arctic would be a great way to offset sea ice loss, utilize a natural resource from our energy production, and keep very limited risks to the natural environment—unlike other geoengineering plans such as iron seeding.
sunshine hours 
Compress waste CO2 into dry ice, load up a few disused oil tankers, and dump all of it into the Arctic Ocean to seed ice growth. 1-kg blocks dumped overboard would continue to cool to a depth of probably 100-meters, and stretched over a distance of a few hundred kilometers, it’s conceivable that such an effort (extremely limited in cost) would result in either a rapid increase in ice growth at the start of the season in October, or extend growth during the late winter/early spring (Mar-Apr). The greater the ice extent, the greater the probability of allowing ice formation to compact and increase sea ice volume.
CO2 is going to be expelled into the atmosphere anyway, and the majority of it goes into the ocean to begin with. A plan such as the one described above would—thanks to the colder baseline Arctic water temperatures—allows greater CO2 absorption and retention than if dumped into the tropical regions (which ultimately needs to transfer latent heat gain towards the poles anyway) while reducing Arctic sea surface temperatures and perhaps, add to ice extent. The greater the extent during the summer months, the more albedo effect reflecting solar insolation back into outer space. Antarctic extent is a non-starter thanks to the size of the continent itself, but open waters of the Arctic would be a great way to offset sea ice loss, utilize a natural resource from our energy production, and keep very limited risks to the natural environment—unlike other geoengineering plans such as iron seeding.
Just my 2¢, of course ….