Sentences with phrase «terrestrial carbon balance»

For example, current models are highly inconsistent in the way they treat the response of Net Primary Production (NPP) to climate variability and climate change even though this response is fundamental to predictions of the total terrestrial carbon balance in a changing climate.

Not exact matches

By 2100, the ocean uptake rate of 5 Gt C yr - 1 is balanced by the terrestrial carbon source, and atmospheric CO2 concentrations are 250 p.p.m.v. higher in our fully coupled simulation than in uncoupled carbon models2, resulting in a global - mean warming of 5.5 K, as compared to 4 K without the carbon - cycle feedback.

The carbon balance shows that terrestrial biomass and soil nets an extra 3 Gt C per year, so only 60 - 70 % of emissions remain, ~ 6 Gt C, as ghg's and ocean acidifying H2CO3.

The existence of this oceanic carbon pump also raises questions about the need for a large terrestrial carbon sink in the Northern Hemisphere, as postulated by Tans et al. 3, to balance the present global carbon budget.

For the thousandth time, there is a CARBON CYCLE (open your ears this time), which means that carbon is cycled through the oceans, terrestrial biosphere and atmosphere and stays in rough balance with what is absorbed and emCARBON CYCLE (open your ears this time), which means that carbon is cycled through the oceans, terrestrial biosphere and atmosphere and stays in rough balance with what is absorbed and emcarbon is cycled through the oceans, terrestrial biosphere and atmosphere and stays in rough balance with what is absorbed and emitted.

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 reason for a reduced CO2 rate of rise was probably not due to a reduction in emission rates, but it may have reflected carbon cycle feedbacks that slightly altered the balance between atmospheric CO2 and terrestrial and oceanic sinks.