Sentences with phrase «overall land carbon»

So, as carbon dioxide continued to rise, its fertilising effect on plants continued but respiration weakened for a while, strengthening the overall land carbon sink.

Not exact matches

Such a dramatic decline could turn the land from taking up carbon overall to pumping it out by 2100, as the rate of respiration by soil microbes, which exhale carbon dioxide, is predicted to increase in a warmer world.

Despite these competing factors, the land continued to act as an overall carbon sink over the past few decades, says Arora:

With each desecrated acre of forest land, the earth suffers potential overall climate changes, as forests are key to carbon dioxide intake from the air.

Overall the researchers estimate that 20 percent of U.S. carbon emissions could be offset through afforestation, or the conversion of marginal agricultural lands into forests.

Changes in vegetation carbon residence times can cause major shifts in the distribution of carbon between pools, overall fluxes, and the time constants of terrestrial carbon transitions, with consequences for the land carbon balance and the associated state of ecosystems.

The following sections explain the controls on these fluxes, with special reference to processes by which anthropogenic changes may influence the overall carbon balance of the land and oceans on time - scales from years to centuries.

The overall net emission over this period = + 0.5 units yet we can see how anthropogenic and sea (e.g. warming) contribute equally to this figure while net natural emission (i.e. sea + land) is — 0.5 Do we really know enough about the carbon cycle, in particular the natural fluxes of CO2, to rule out that some thing like this is going on?

Land Use Change Emissions Push Corn Ethanol Past Baseline It's the inclusion of a penalty for these indirect land use changes into the overall carbon intensity of a particular fuel that has caused controversy: Corn ethanol is already above the baseline at 97 grams of carbon per megajoule, due to a 30 gram penalty assessed for land use chanLand Use Change Emissions Push Corn Ethanol Past Baseline It's the inclusion of a penalty for these indirect land use changes into the overall carbon intensity of a particular fuel that has caused controversy: Corn ethanol is already above the baseline at 97 grams of carbon per megajoule, due to a 30 gram penalty assessed for land use chanland use changes into the overall carbon intensity of a particular fuel that has caused controversy: Corn ethanol is already above the baseline at 97 grams of carbon per megajoule, due to a 30 gram penalty assessed for land use chanland use changes.

However, CCS removes some 300 billion tonnes of carbon, giving an overall accumulation of 1.25 trillion tonnes by 2100 (current accumulation plus fossil use to 2100 plus land use change and cement).

However, he added: «Overall, the carbon footprint of air - freighting is greater to such a large degree than land transport that we think there is a pretty strong case for looking at a ban very seriously.»

The land - use change and forestry sector plays a significant role in the overall carbon balance of the atmosphere.