Sentences with phrase «gtc =»
4 GtC — 8 GtC = x — y = -4 GtC where x is the sum of all natural inputs and y of all natural sinks.
http://joannenova.com.au/
How Antarctic ice would be affected by different emissions scenarios (GTC = gigatons of carbon).
FYI, 1 GtC = 3.67 Gt CO2 because of the mass of the chemically - bound oxygen.
Not exact matches
0.185 (fraction of carbon by mass) * 80 kg (average mass of a human) * 3 billion (additional humans) * 10 - 3 (conversion to GtC) / 40 years = 0.001 GtC / yr
(1 Gt = 1012 kg is the mass of 1 cubic km of water, and 1 GtC produces about 2.12 ppm of CO2 in the air).
(CDIAC have just published 2012 preliminary emissions estimates = 9.67 GtC.)
If you add to S the 270 GtC / yr for leaf water from the TAR, then T = 1.58 years.
Thus after 2030 there will be an annual uptake of 1.6 + 0.16 = 1.76 GtC per year, based on the two processes described.»
In a footnote they note the conversion factor of «2.12 GtC yr - 1 = 1 ppm» which works out to about 4 GtC a year given current buildup rates of around 2 ppmV.
The current level of 394 ppm represents an accumulation of (394 − 295) / 0.47 = 211 GtC.
If less than $ 100 per tonne of CO2 (= 0.27 GtC) then you'd be coming out ahead.
Nearly 1/3 of the 8 GtC / year is absorbed by just forests worldwide currently http://www.csiro.au/news/Forests-absorb-one-third-our-fossil-fuel-emissions.html Which leaves a miserly 1.333 GtC / year for the rest of the biological sinks (and oceans) to absorb leaving the atmosphere CO2 at 4 GtC / year increase = the CO2 levels are still to low and this shows the CO2 global pathway as definitely unknown.
BTY: 8/50 = 0.16 GTC / yr — lost in the noise.
Again the 100 GtC Rin = Rout has nothing to do with the excess decay rate, it only shows how long a molecule of any origin stays in the atmosphere and that is the refresh rate.
The 100 GtC Rin = Rout is the turnover, or how long a specific molecule in average stays in the atmosphere.
These two floors take the forms and where A and B are constants with units of gigatonnes of carbon per year (GtC yr − 1) and represent the size of the emissions floor in the year 2050 (t = t2050), and τ is a time constant set to 200 years.
5.4 billion tons coal = 15.4 billion tons of CO2 = 3.8 billion tons of carbon — which is about 1/2 of the 7.2 GtC produced by human beings every year.
And from a practical view: we don't know the exact height of C or D, but we know (for the past 50 years) that (C - D) = 0.55 * A + / - 2 GtC.
Instead, the sink rate, the difference between C and D, is a linear response to the increase in the atmosphere: S (k) = S (k - 1) + A (k) + (C - D)(k)(C - D)(k) = d * (S (k)- So) S (k) = S (k - 1) + A (k) + d * (S (k)- So) where So is S at equilibrium conditions and d about 0.04 GtC / ppmv difference.
The calculation will be as follows: 1.52 x10 ^ -LRB--6) x (12/44) x5.148 x10 ^ (15) = 2.13 GtC.
The equation is just V ₀ ⋅ t + (k ⁄ 2) ⋅ t ², where V ₀ = 9 GtC / yr, k = 0.23 GtC / yr ², and t = 26 years.