Nearly as much gets emitted by solid wood products that have likewise been discarded … This process takes in oxygen from the atmosphere and releases carbon dioxide. This occurs through the emission of too much carbon dioxide into the atmosphere, which is caused mainly by the burning of fossil fuels. Burning wood may be close to carbon neutral in some situations, such as where it is clear that cut trees are replaced with the same trees, one for one; but in others it can emit even more carbon than coal. By burning coal, oil, and natural gas, we accelerate the process, releasing vast amounts of carbon (carbon that took millions of years to accumulate) into the atmosphere every year. An excess amount of carbon … Helin et al 2013). But it gives an equivalent amount of CO2 from burning wood a free pass. The carbon cycle and … To make matters worse, burning wood actually releases more climate pollution per unit of energy produced than coal does. By doing so, we move the carbon from the slow cycle to the fast cycle. "The Amazon is a carbon sink, which slows the rate of carbon dioxide build up in the atmosphere, and thus climate warming," said James Randerson from the University of California, Irvine. The sunlight heats the Earth's surface. Burning wood instead of coal therefore creates a carbon debt—an immediate increase in atmospheric CO 2 compared to fossil energy—that can be repaid over time only as—and if— NPP rises above the flux of carbon from biomass and soils to the atmosphere on the harvested lands. A “carbon sink” is anything that absorbs large amounts of carbon dioxide from the atmosphere, retaining the carbon in one form or another. The greenhouse effect occurs when sunlight goes through the Earth's atmosphere and passes through a blanket of greenhouse gases, which include carbon dioxide, methane and nitrous oxide. Dynamic analysis is required to answer the second question (e.g. For example, about 70 percent of a forest may regrow in, say, 25 … In 2009, humans released about 8.4 billion tons of carbon into the atmosphere by burning fossil fuel. The second-biggest source comes from discarded paper and paperboard products. These emit around 40 MtCO2 a year. Atmospheric carbon accumulation is greatest during forest burning and regrowth.
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