What is the scientific consensus on the relationship between human activity and the increase in atmospheric CO2 percentage?

Jan 2, 2023 ... Some researchers believe that approximately 0.045% by volume is the maximum more or less acceptable concentration of CO2 in the atmosphere. Jun 1, 2020 ... ... percent if atmospheric transport is perfectly known (8). In this ... Peters et al., An atmospheric perspective on North American carbon dioxide ... 2,110, 0.48%, 54,011, 0.04, 0.0000055%. Carbon Dioxide (CO2) Emissions by Country - Worldometer. Sources. Emission Database for Global Atmospheric Research ( ... Jun 6, 2017 ... The Earth's mantle is full of trillions of tons of carbon alone, and if even a small percent of it were added to the atmosphere, it has the ... Dec 16, 2010 ... ... percent of the total carbon released to the atmosphere in any given year. To understand why anthropogenic emissions are of concern, it is ... ... atmosphere by about 10 percent since the beginning of the century. Roger ... atmosphere from the infrared radiance of atmospheric carbon dioxide. Nov 9, 2021 ... Molecule for molecule, methane is far more effective than CO2 at trapping heat in the atmosphere. Estimates of how much methane emissions ... Oct 5, 2021 ... “What matters for the atmosphere and the climate is cumulative CO2 emissions. ... Extending the analysis back to 1750 would add 0.1 percentage ... 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 ... ... as a percentage of the gas in air by volume (1% = 10,000 ppmv). This is in contrast to other volcanic gases. Exposure Effects. Carbon dioxide (CO2) is a ...