11 showed that pCO2 in North American lakes was rarely at equilibrium with CO2 in the atmosphere and found a range of concentration differences from 175 times lower pCO2 than atmospheric CO2 to 57 times greater. Flowing freshwaters show more variability and are typically supersaturated compared to ...
Average carbon dioxide (CO₂) levels in the atmosphere worldwide from 1959 to 2023 (in parts per million) ×Zoomable Statistic: Select the range in the chart you want to zoom in on. Concentration in parts per million1959196119631965196719691971197319751977197919811983198519871989199119931995199719992001200320...
Central Siberialinear trend of CO2Considered are yearly increase and long-term linear trend in the carbon dioxide concentration in the atmospheric surface layer over Central Siberia from January 2006 to December 2013. The presented results are obtained in the course of the unique high-accuracy ...
in CO2concentration may cause some of the ice-age cooling, but what causes the loss of CO2is unknown. Daniel Sigman, Mathis Hain and Gerald Haug review the evidence in support of the hypothesis that the Southern Ocean is an important driver of these glacial/interglacial changes in partial ...
The Waliguan observatory took part in the World Meteorological Organization's Global Atmosphere Watch program, along with 30 other participants. The program's 2021 global greenhouse gases bulletin, issued in October, said the carbon dioxide concentration was 415.7 ppm, slightly lower than that gauged...
3,4 Hence, there is an urgent need to develop sustainable alternatives to mitigate the anthropogenic CO2 concentration in the atmosphere. Electrochemical reduction of CO2 into value-added chemicals and fuels helps with the urgently needed intermittent storage of renewable electricity and opens broader ...
CO2 concentration in the atmosphere increased from 280 ppm in the pre-industrial revolution time to above 400 ppm today [4]. Contribution of emissions from fossil fuels to this increase is higher than 2 ppm per year, presenting the importance of CO2 capture from flue gas [5]. On ...
Fig.1 Key factors for microalgae achieving carbon sequestration in flue gas 微藻耐受烟气需要高碳氛围和酸性环境,环境因子可能对微藻产物合成有较大影响。因此,藻种筛选是实现高效固碳的首要条件,良好的藻种是实现微藻高效经济生物固碳减排的基础。 1.1 高效固碳藻种选育 ...
(W/m2/ppm); for positive values the flux is directed from the atmosphere into the ocean (d) regression map of spring precipitation rate on the SLP time series shown in panel b ([kg/(m2 × s)/Pa] × 106); the dominant North Atlantic SLP mode is also shown (solid black ...
(AC-SPS) was performed on bCN, IL/bCN, and Co-bCN31. As Supplementary Fig. 12a, a negligible SPS signal of bCN was detected in the atmosphere of N2due to the intrinsic poor charge separation. The signal intensities of IL/bCN in different atmospheres decrease as the order of O2 >...