“CO2 in the atmosphere has gone up 100 ppm in my lifetime,” said Kathleen Benison. a geologist at West Virginia University who researches past climates. “That’s incredibly fast geologically.”“You don’t have to be a scientist to realize something totally unusual is going on, and that...
根据第一段"Climate change is threatening our future as more and more greenhouse gases like CO2 are gathering in the atmosphere and heating up the planet. "(气候变化正威胁着我们的未来,因为越来越多的温室气体(如二氧化碳)聚集在大气中,使地球升温。)...
and 5College of Life & Environmen- tal Science, Wenzhou University, Wenzhou, Zhejiang 325035, China Abstract Aims The objective of this study was to compare the values of respiration under light derived by fitting a pho- tosynthetic CO2 response model and measurements, in order to provide inform...
Quantitative predictions of the accumulation of fossil CO 2 have important implications for marine life.doi:10.1038/245020a0FAIRHALLA. WSpringer NatureNatureFairhall, A (1973) Accumulation of fossil CO2 in the atmosphere and the sea. Nature 245: pp. 273-274...
Pg C in the upper 10 cm) and its turnover time, OCpetrocannot be assumed to be inert and passive in the shallow subsurface. The input of OCpetrointo soils can also impact soil residence time estimations and lead to an underestimation of soil carbon exchange fluxes with the atmosphere...
(人类活动排放的甲烷远远少于二氧化碳,但甲烷的影响更大)”和第三段中“Carbon dioxide stays in the atmosphere for centuries, making it hard to reduce its atmospheric concentrations (浓度). By contrast, methane has a half-life of roughly ten years, which means that it degrades quickly. If new ...
根据第一段"Climate change is threatening our future as more and more greenhouse gases like CO2 are gathering in the atmosphere and heating up the planet. "(气候变化正威胁着我们的未来,因为越来越多的温室气体(如二氧化碳)聚集在大气中,使地球升温。)...
“Considering the fact that present human activities, primarily through fossil fuel burning, are releasing vast quantities of carbon into the Earth’s atmosphere and oceans at a rate never before seen in the geological past, it appears that the world is racing toward another major mass extinction...
At room temperature, carbon dioxide (CO2) is a colorless, odorless, faintly acidic tasting, non-flammable gas. CO2 is the fourth most abundant gas in the earth’s atmosphere. Depending on the temperature and pressure, carbon dioxide can also exist as a liquid or a solid. In its solid form...
The increase in the production and consumption activities of societies, especially after the industrial revolution, is seen as the main reason for the rise in Greenhouse Gases (GHG) in the atmosphere (EPA1). The vast majority of GHG is released as carbon dioxide (CO2) emissions as a result ...