July 24th, 2020 | by Steve Hanley
Researchers at Harvard plan a geoengineering experiment injecting calcium carbonate dust high over the Southwestern US to see if it can help lower the temperature of the air below.
October 28th, 2019 | by Michael Barnard
Researching air-carbon capture for use post-2050 remains a very good means of establishing the intellectual capital and basic technologies for when it makes sense to use them. But attempts to commercialize them today are premature
July 17th, 2019 | by Michael Barnard
Solar geoengineering is a bandaid on the symptoms, not a cure for the causes. It's like putting out the fires caused by an arsonist wandering around with a flamethrower instead of confiscating and shutting off the flamethrower itself. Global heating would slow and stabilize if we stopped forcing more CO2 into the system. But it's unclear if that's as true for oceanic carbon uptake
May 3rd, 2019 | by Nexus Media
A handful of scientists want to dim the sun to cool the planet. A recent debate shows the idea is perilous, impractical — and immensely appealing
April 27th, 2019 | by Michael Barnard
Carbon Engineering will produce transportation fuels that cost 18-25 times more and have 22-35 the CO2e emissions as just using electricity in an
April 26th, 2019 | by Michael Barnard
Carbon Engineering is planning to build high-cost and comparatively high-emission transportation fuels by combining their expensive CO2 with hydrogen which they will get via expensive electrolysis
April 20th, 2019 | by Michael Barnard
Air carbon capture, especially as Carbon Engineering is doing it, is a fig leaf for the fossil fuel industry
April 19th, 2019 | by Michael Barnard
Carbon Engineering's solution is only useful in tapped-out oil wells and as greenwashing for fossil fuel companies
April 14th, 2019 | by Michael Barnard
Carbon Engineering's solution would require 2-kilometer long, 20 meter high walls of noisy fans to capture 4 orders of magnitude less carbon than would be useful.
April 13th, 2019 | by Michael Barnard
Carbon Engineering's solution is a natural gas hog that produces a half ton of new CO2 for each ton captured from the air.
April 12th, 2019 | by Michael Barnard
To scale to an inadequate million tons of CO2 a year, the company would need 2,000 two-meter fans blowing air into contactors in an array 20 meters high, 8 meters thick, and two kilometers long
