What are the emerging trends in climate science and policy?

May 30, 2018 ... Since 1750, the concentration of carbon dioxide in the atmosphere has risen 46 percent. ... CO2. An AGGI value of 1.0 was assigned to the ... Mar 30, 2022 ... However, while carbon dioxide (CO2) emissions fell by 5.4 percent in 2020, the amount of carbon dioxide in the atmosphere continued to grow. Sep 17, 2023 ... Mars' atmosphere is over 100 times thinner than Earth's and is primarily composed of carbon dioxide, nitrogen and argon gases. Feb 2, 2020 ... Their results showed that 2.7 billion years ago, carbon dioxide comprised at least 70 percent by volume of Earth's atmosphere. Assuming the Sun ... Oct 21, 2024 ... It represents the largest carbon exchange between land and atmosphere on the planet. GPP is typically cited in petagrams of carbon per year. One ... Dec 7, 2023 ... Today atmospheric carbon dioxide is at its highest level in at least several million years thanks to widespread combustion of fossil fuels ... Jun 16, 2024 ... ... carbon dioxide (CO2) from the atmosphere ... The ocean absorbs about 30 percent of the CO2 that is released in the atmosphere, and as ... 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 ... Mar 24, 2021 ... Carbon dioxide in the atmosphere fuels plant growth. As carbon ... percent. In other words, plants will likely play a far less ... Sep 17, 2023 ... A significant amount of carbon dioxide is exchanged between the atmosphere and oceans every year, but the fast carbon cycle's most important ...