What are the physiological effects of breathing air with elevated CO2 concentrations?

This graph shows rising levels of carbon dioxide (CO2) in the atmosphere ... Mussels and oysters are expected to grow less shell by 25 percent and 10 percent ... 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 ... Oct 1, 2019 ... One common argument is that those countries that have added most to the CO2 in our atmosphere – contributing most to the problem today ... 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 ... Oct 9, 2019 ... The concentration of carbon dioxide in Earth's atmosphere is currently at nearly 412 parts per million (ppm) and rising. This represents a 47 ... The table also gives the percentage of the atmosphere composed of the gas. Object. Mass. (kilograms). Carbon. Dioxide. Nitrogen Oxygen Argon Methane. Sodium. 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. Sep 4, 2020 ... The ocean is a sink for ~25% of the atmospheric CO2 emitted by human activities, an amount in excess of 2 petagrams of carbon per year (PgC ... 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. Aug 12, 2020 ... At the time, atmospheric CO2 concentration was at a whopping 3000 to 9000 ppm! The average temperature wasn't much more than 10 degrees C above ...