which had not been seen in previous attempts to simulate the Early Eocene using similar amounts of carbon dioxide, is likely due to an improved representation of cloud processes in the climate model they used, the Community Earth System Model version 1.2, or CESM1.2. ...
TOKYO, May 31 (Xinhua) -- The average atmospheric carbon dioxide concentration level hit record high in Japan in 2016, the Japan Meteorological Agency (JMA) said on Wednesday. According to a report released by the JMA, which observes surface concentrations of carbon dioxide at three stations in...
Carbon dioxide readings that high are expected everywhere by mid-century. The findings suggest some woody tree species could, in the future, out-compete grasses and other herbaceous plants that scientists had previously found can also produce moreseedsunder high-CO2, but of inferior quality. "Even...
The level of carbon dioxide in theatmosphere has increased by some12% in the last 100 years, mainly becauseof extensive burning of fossilfuels and the destruction of largeareas of rain forest. This has beenpostulated as the main cause of theaverage increase of 0.5°C in globaltemperatures over...
25、A spokesperson commented that levels ofcarbon dioxidewere very high.(发言人称二氧化碳的含量很高。) 26、The emission of gases such ascarbon dioxideshould be stabilized at their present level.(二氧化碳之类气体的排放应该被控制在目前的水平上。) ...
Carbon dioxide (CO 2 ) is considered a trace gas in the atmosphere because it is much less abundant than oxygen or nitrogen. However, this trace gas plays a vital role in sustaining life on Earth and in controlling the Earth's climate by trapping heat in the atmosphere. ...
The influence of carbon dioxide can be seen in past changes in climate. Ice cores from over the past million years have shown that carbon dioxide concentrations were high during warm periods—about 0.028%. During ice ages, whenthe Earth was roughly 7 to 13 F(4-7 C) cooler than in the ...
Nitrogen fixation rates of the globally distributed, biogeochemically important marine cyanobacterium Trichodesmium increase under high carbon dioxide (CO2) levels in short-term studies due to physiological plasticity. However, its long-term adaptive res
The atmospheric level of carbon dioxide (CO2)—a gas that is great at trapping heat, contributing to climate change—is almost double what it was prior to the Industrial Revolution. This presents a challenge to researchers attempting to design artificial trees or other methods of capturing (捕获...