We present evidence that Constructed wetlands can be major sources of greenhouse gases, particularly ebullitive CH4 that accounted for more than two-thirds of the total emissions. As such, ebullitive flux rate measurements are critical to assemble national greenhouse gas budgets, particularly from ...
Carbon and nitrogen losses from degraded wetlands and methane emissions from flooded wetlands are both important sources of greenhouse gas emissions. However, the net-exchange dependence on hydrothermal conditions and wetland integrity remains unclear. Using a global-scale in situ database on net greenho...
Landfills represent significant anthropogenic sources of methane (CH 4 ) and carbon dioxide (CO 2 ); the main constituents of greenhouse gases (GHGs) resultant from microbial decomposition of organic waste. In the present study, ISC-AERMOD dispersion model was employed to estimate the release and ...
Carbon dioxide is one of the major greenhouse gases. Most of this heat-trapping gas is produced through human activities related to burning fossil fuels. Several major industries have attempted to move away from fossil fuels in favor of cleaner energy solutions. ...
turn them into a major source of greenhouse gases. 出自-2013年6月阅读原文 the most comprehensive data from major Time Use Service suggests, if anything, Americans today have more free time than the early generations. 出自-2014年6月听力原文 What was the man's major at university? 出自-2011年...
)is one of the major greenhouse gases.Most of this heat-trapping gas is produced through human activities related to burning fossil (化石)fuels for electricity,heat and transportation.Several major industries have attempted to move away from fossil fuels in favor of cleaner energy solutions. ...
The prominent factor deriving climate change is the increase in the concentration of greenhouse gases (GHGs) in the atmosphere. The ever increasing concentrations of carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and other GHGs have distorted the balance between the incoming and the ...
1. A 细节理解题 【关键句】Scientists blame greenhouse gases for being a major cause of climate change around the world. 释义:科学家把全球气候变化的主要原因归咎于温室 气体。 【解析】根据关键句可知,温室气体是全球气候变化的主 要原因,故选A项。 B项意为“化学废料” ;C项意为“甲酸” ;D项意为...
Tans, Trends and temporal variations of major greenhouse gases at a rural site in Central Europe, Atmos. Environ. 42 (2008) 8707-8716.L. Haszpra,Z. Barcza,D. Hidy,I. Szilagyi,E. Dlugokencky,P. Tans. Trends And Temporal Variations Of Major Greenhouse Gases At A Rural Site In Central...
“If the electricity comes from renewable sources like the sun or wind, we can create a cycle that turns C02 into something important without releasing more of it. "32. Where does carbon dioxide mainly come from? A. Animal farming. B. Fossil fuel burning. C. Greenhouse effects. D. ...