What are the risks and uncertainties associated with geoengineering approaches to lowering atmospheric CO2?

Apr 21, 2023 ... Carbon dioxide makes up only about 0.04% of the Earth's atmosphere, but that seemingly small figure ignores threat CO2 poses to the climate. Sep 16, 2019 ... CO2 Makes Up Just 0.04% of Earth's Atmosphere. Here's Why Its Impact Is So Massive ... Reader question: I heard that carbon dioxide makes up 0.04 ... Mar 24, 2021 ... Carbon dioxide in the atmosphere fuels plant growth. As carbon ... percent. In other words, plants will likely play a far less ... Jan 4, 2024 ... In one video posted on X , opens new tab a commentator says: “Do you know how much CO2 is in the atmosphere? It's 0.04%. That's like one limb on ... In fact, the emissions of CO2 (carbon dioxide) from soils to the atmosphere are around ten times those from fossil fuels, but under natural conditions this is ... May 18, 2023 ... ... atmosphere is cooling dramatically because of rising CO2 levels. ... The depth of the stratosphere has diminished by about 1 percent, or ... ... atmosphere by about 10 percent since the beginning of the century. Roger ... atmosphere from the infrared radiance of atmospheric carbon dioxide. Jul 30, 2019 ... CO2 makes up only about 0.04% of the atmosphere, and water vapor can vary from 0 to 4%. But while water vapor is the dominant greenhouse gas in ... The GLODAP data show that the world ocean has so far only absorbed around 40 per cent of the carbon dioxide discharged by humans into the atmosphere between ... Net zero refers to a state in which the greenhouse gases going into the atmosphere are balanced by removal out of the atmosphere. ... carbon dioxide (CO2).