A. Revised estimates of the annual net flux of carbon to the atmosphere from changes in land use and land management 1850–2000. Tellus B 55, 378–390 (2003) ADS Google Scholar Nepstad, D. C. et al. Large-scale impoverishment of Amazonian forests by logging and fire. Nature 398, ...
Kelemen thinks a drilling operation be used to move carbon-rich water into the new seabed on underwater mountains. The submerged rock would chemically take in carbon from the water. The water could then move back to the surface to absorb more carbon from the atmosphere. Then the process would...
Carbon dioxide levels peak every May just before plant life in the Northern Hemisphere blossoms, sucking some of that carbon out of the atmosphere and into flowers, leaves, seeds and stems. The reprieve is temporary, though, because emissions of carbon dioxide from burning coal, oil and natural...
aThe researchers then analyzed how much carbon dioxide was in the atmosphere above each of these sites over time. “Less carbon dioxide has remained in the atmosphere, relative to the amount of fossil fuel emissions, today compared to 50 years ago,” Tans said. Even including the effects of ...
It was found that >89% of the C flux to the atmosphere from decomposition of organic matter originated from fine litter, coarse woody debris and the upper 20 cm of soil in all biomes. 展开 关键词: terrestrial carbon cycle mean residence time model parameterization genetic algorithm ...
[03:07.31]They want to find out how the rocks managed to capture so much carbon over time. [03:13.83]They want to know if the process could be used to clean carbon from the earth's atmosphere. [03:20.91]Keleman'...
阅读理解 “Plants were expected to get larger with increased carbon dioxide in atmosphere, but changes in temperature, humidity and nutrient availability seem to trumped the benefits of increased carbon dioxide,” said researchers from the National University of Singapore. 45 percent of the species st...
Summary : The claim that old-growth forests play a significant role in climate mitigation, based upon the argument that even the oldest forests keep sucking CO₂ out of the atmosphere, is being refuted. Researchers document tha...
根据第一段中的CO2 levels in the atmosphere grew at a record-high speed in 2013,and the planet's natural ability to take in carbon may be slowing down.That's what the World Meteorological Organization (WMO),a UN body,said in a recent report.(大气中的二氧化碳含量在2013年以创纪录的速度...
the deep ocean contains far more carbon—it is the largest pool of actively cycled carbon in the world, containing 50 times more than the atmosphere—but the timescale to reach equilibrium with the atmosphere is hundreds of years: the exchange of carbon between the two layers, driven by therm...