Sentences with phrase «less deep carbon»

This happened in two steps: First, in the Antarctic zone of the Southern Ocean, a reduction in wind - driven upwelling and vertical mixing brought less deep carbon to the surface.

Not exact matches

As these winds enhance ocean circulation, they may be encouraging carbon - rich waters to rise from the deep, say the team, meaning that surface water is less able to absorb CO2 from the atmosphere.

Stronger, longer - lasting modern concrete, made with less fuel and less release of carbon into the atmosphere, may be the legacy of a deeper understanding of how the Romans made their incomparable concrete.

Vigorous convective mixing in the deep tropics also dilutes changes in near - surface CO2 much more than at higher latitudes, so low - altitude sampling contains relatively less information about carbon sources and sinks.

Over very long time periods such that the carbon cycle is in equilibrium with the climate, one gets a sensitivity to global temperature of about 20 ppm CO2 / deg C, or 75 ppb CH4 / deg C. On shorter timescales, the sensitivity for CO2 must be less (since there is no time for the deep ocean to come into balance), and variations over the last 1000 years or so (which are less than 10 ppm), indicate that even if Moberg is correct, the maximum sensitivity is around 15 ppm CO2 / deg C. CH4 reacts faster, but even for short term excursions (such as the 8.2 kyr event) has a similar sensitivity.

«If we end up with scenarios in the future where we don't get big blooms, you would get less carbon exported to the deep sea.»

The current total of 300 GtC human emissions adds less than 1 % to the carbon reservoir in the deep oceans, and ultimately that is all what returns if everything is back in equilibrium.

The alleged long lifetime of 500 years for carbon diffusing to the deep ocean is of no relevance to the debate on the fate of anthropogenic CO2 and the «Greenhouse Effect», because POC can sink to the bottom of the ocean in less than a year (Toggweiler, 1990).

Physically, C1 can be thought of as representing the concentration of CO2 in long - term stores such as the deep ocean; C1 + C2 as representing the CO2 concentration in medium - term stores such as the thermocline and the long - term soil - carbon storage; and C = C1 + C2 + C3 as the concentration of CO2 in those sinks that are also in equilibrium with the atmosphere on time scales of a year or less, including the mixed layer, the atmosphere itself and rapid - response biospheric stores.

Many states and companies have said they don't think they are able to comply with the EPA emissions regulations as they are proposed — much less deeper and faster carbon cuts.