{UTF-8}
Dissociation constant=
	6.352
	~	
	~		|

Bicarbonate=
	Dissolved carbon dioxide in the ocean/100*98
	~	
	~		|

Bicarbonate HCO3 concentration=
	Bicarbonate*0.001/Molar mass HCO3
	~	
	~		|

"Bicarbonate HCO3 concentration in mol/l"=
	Bicarbonate HCO3 concentration*1000
	~	
	~		|

Carbon dioxide=
	Dissolved carbon dioxide in the ocean/100*2
	~	
	~		|

Carbon dioxide concentration=
	Carbon dioxide*0.001/Molar mass CO2
	~	
	~		|

"Carbon dioxide concentration in mol/l"=
	Carbon dioxide concentration*1000
	~	
	~		|

pH value=
	Dissociation constant+LOG("Bicarbonate HCO3 concentration in mol/l"/"Carbon dioxide concentration in mol/l"\
		, 10)
	~	
	~		|

Molar mass HCO3=
	61
	~	
	~		|

Molar mass CO2=
	44
	~	
	~		|

Dissolved carbon dioxide in the ocean=
	Atmosphere/100*30
	~	
	~		|

Atmosphere= INTEG (
	CO2 emissions+CO2 release+decomposition+respiration-CO2 absorption-photosynthesis,
		898.86)
	~	Gt
	~		|

ocean mixing=
	100*(Deep Ocean/38100)
	~	
	~		|

Ocean surface= INTEG (
	CO2 absorption+ocean mixing-remains-CO2 release,
		1020)
	~	Gt
	~		|

Deep Ocean= INTEG (
	remains-ocean mixing,
		38100)
	~	Gt
	~		|

photosynthesis=
	121.8*(Atmosphere/750)
	~	
	~		|

Forest= INTEG (
	photosynthesis-death-respiration,
		610)
	~	Gt
	~		|

death=
	60 * (Forest/610)
	~	Gt/yr
	~		|

CO2 emissions=
	5.5
	~	 [0,10,0.5]
	~		|

Fuel= INTEG (
	-CO2 emissions,
		10000)
	~	Gt
	~		|

remains=
	91.6 * (Ocean surface/1020)
	~	Gt/yr
	~		|

CO2 absorption=
	92 * (Atmosphere/750)
	~	Gt/yr
	~		|

CO2 release=
	90* (Ocean surface/1020)
	~	Gt/yr
	~		|

decomposition=
	60 * (Soils/1580)
	~	Gt/yr
	~		|

respiration=
	61.6 * (Forest/610)
	~	Gt/yr
	~		|

Soils= INTEG (
	death-decomposition,
		1580)
	~	Gt
	~		|

********************************************************
	.Control
********************************************************~
		Simulation Control Parameters
	|

FINAL TIME  = 250
	~	Year
	~	The final time for the simulation.
	|

INITIAL TIME  = 0
	~	Year
	~	The initial time for the simulation.
	|

SAVEPER  = 
        TIME STEP
	~	Year [0,?]
	~	The frequency with which output is stored.
	|

TIME STEP  = 0.25
	~	Year [0,?]
	~	The time step for the simulation.
	|

\\\---/// Sketch information - do not modify anything except names
V300  Do not put anything below this section - it will be ignored
*View 1
$192-192-192,0,Times New Roman|12||0-0-0|0-0-0|0-0-255|-1--1--1|-1--1--1|96,96,90,0
10,1,Atmosphere,400,432,66,34,3,131,0,36,0,0,0,0,128-192-255,255-255-255,Helvetica||B|128-192-255,0,0,0,0,0,0
10,2,Forest,210,656,63,28,3,131,0,36,0,0,0,0,255-0-0,255-255-255,Helvetica||B|0-0-0,0,0,0,0,0,0
10,3,Ocean surface,727,559,59,28,3,131,0,36,0,0,0,0,0-255-0,255-255-255,Helvetica||B|0-0-0,0,0,0,0,0,0
10,4,Soils,-99,694,59,40,3,131,0,36,0,0,0,0,128-128-0,255-255-255,Helvetica||B|0-0-0,0,0,0,0,0,0
10,5,Deep Ocean,813,774,55,31,3,131,0,36,0,0,0,0,192-128-192,255-255-255,Helvetica||B|0-0-0,0,0,0,0,0,0
1,6,8,1,4,0,0,22,0,0,0,-1--1--1,,1|(350,497)|
1,7,8,2,100,0,0,22,0,0,0,-1--1--1,,1|(350,656)|
11,8,0,350,537,10,8,33,3,0,0,2,0,0,0,0,0,0,0,0,0
10,9,respiration,307,537,33,16,40,3,0,32,1,0,0,0,-1--1--1,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,10,12,1,4,0,0,22,0,0,0,-1--1--1,,1|(117,424)|
1,11,12,4,100,0,0,22,0,0,0,-1--1--1,,1|(-108,544)|
11,12,0,-108,424,8,10,34,3,0,0,3,0,0,0,0,0,0,0,0,0
10,13,decomposition,-108,400,78,14,40,3,0,32,-1,0,0,0,-1--1--1,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,14,16,4,4,0,0,22,0,0,0,-1--1--1,,1|(33,679)|
1,15,16,2,100,0,0,22,0,0,0,-1--1--1,,1|(135,679)|
11,16,0,114,679,8,10,34,3,0,0,1,0,0,0,0,0,0,0,0,0
10,17,death,114,711,42,22,40,3,0,32,-1,0,0,0,-1--1--1,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,18,20,3,4,0,0,22,0,0,0,-1--1--1,,1|(717,493)|
1,19,20,1,100,0,0,22,0,0,0,-1--1--1,,1|(586,447)|
11,20,0,717,447,10,8,33,3,0,0,2,0,0,0,0,0,0,0,0,0
10,21,CO2 absorption,637,447,70,29,40,3,0,32,0,0,0,0,-1--1--1,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,22,24,1,4,0,0,22,0,0,0,-1--1--1,,1|(420,499)|
1,23,24,3,100,0,0,22,0,0,0,-1--1--1,,1|(549,541)|
11,24,0,420,541,10,8,33,3,0,0,4,0,0,0,0,0,0,0,0,0
10,25,CO2 release,465,541,35,16,40,3,0,32,1,0,0,0,-1--1--1,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,26,28,5,4,0,0,22,0,0,0,-1--1--1,,1|(720,758)|
1,27,28,3,100,0,0,22,0,0,0,-1--1--1,,1|(675,667)|
11,28,0,675,758,8,10,34,3,0,0,1,0,0,0,0,0,0,0,0,0
10,29,remains,675,790,42,22,40,3,0,32,-1,0,0,0,-1--1--1,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,30,Fuel,377,185,55,26,3,131,0,36,0,0,0,0,-1--1--1,255-255-255,Helvetica||B|255-255-255,0,0,0,0,0,0
1,31,33,1,4,0,0,22,0,0,0,-1--1--1,,1|(345,357)|
1,32,33,30,100,0,0,22,0,0,0,-1--1--1,,1|(345,255)|
11,33,0,345,308,10,8,33,3,0,0,4,0,0,0,0,0,0,0,0,0
10,34,CO2 emissions,409,308,54,19,40,131,0,32,-1,0,0,0,-1--1--1,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,35,4,12,1,0,0,0,0,64,0,-1--1--1,,1|(-195,570)|
1,36,2,8,1,0,0,0,0,64,0,-1--1--1,,1|(313,622)|
1,37,1,20,1,0,0,0,0,64,0,-1--1--1,,1|(669,477)|
1,38,3,28,1,0,0,0,0,64,0,-1--1--1,,1|(647,639)|
1,39,3,24,1,0,0,0,0,64,0,-1--1--1,,1|(563,633)|
1,40,2,17,1,0,0,0,0,64,0,-1--1--1,,1|(207,749)|
1,41,43,2,4,0,0,22,0,0,0,-1--1--1,,1|(110,656)|
1,42,43,1,100,0,0,22,0,0,0,-1--1--1,,1|(227,458)|
11,43,0,110,458,10,8,33,3,0,0,4,0,0,0,0,0,0,0,0,0
10,44,photosynthesis,197,458,77,29,40,131,0,32,0,0,0,0,-1--1--1,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,45,1,43,1,0,0,0,0,64,0,-1--1--1,,1|(249,512)|
1,46,48,3,4,0,0,22,0,0,0,-1--1--1,,1|(770,617)|
1,47,48,5,100,0,0,22,0,0,0,-1--1--1,,1|(770,703)|
11,48,0,770,655,10,8,33,3,0,0,4,0,0,0,0,0,0,0,0,0
10,49,ocean mixing,840,655,60,16,40,3,0,32,-1,0,0,0,-1--1--1,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,50,5,48,1,0,0,0,0,64,0,-1--1--1,,1|(810,704)|
10,51,Dissolved carbon dioxide in the ocean,665,312,50,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,52,Carbon dioxide,784,224,42,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,53,Bicarbonate,783,406,42,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,54,1,51,1,0,0,0,0,192,0,-1--1--1,,1|(515,300)|
10,55,Carbon dioxide concentration,922,226,42,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,56,Molar mass CO2,885,106,43,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,57,"Carbon dioxide concentration in mol/l",1105,225,55,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,58,pH value,1281,324,42,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,59,Bicarbonate HCO3 concentration,931,402,48,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,60,"Bicarbonate HCO3 concentration in mol/l",1091,393,55,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,61,Molar mass HCO3,1001,585,47,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
10,62,Dissociation constant,1283,90,53,22,8,3,0,32,-1,0,0,0,0-0-0,0-0-0,Helvetica|||0-0-0,0,0,0,0,0,0
1,63,51,52,1,0,0,0,0,192,0,-1--1--1,,1|(718,251)|
1,64,52,55,0,0,0,0,0,192,0,-1--1--1,,1|(0,0)|
1,65,51,53,1,0,0,0,0,192,0,-1--1--1,,1|(706,375)|
1,66,56,55,0,0,0,0,0,192,0,-1--1--1,,1|(0,0)|
1,67,53,59,0,0,0,0,0,192,0,-1--1--1,,1|(0,0)|
1,68,61,59,0,0,0,0,0,192,0,-1--1--1,,1|(0,0)|
1,69,59,60,0,0,0,0,0,192,0,-1--1--1,,1|(0,0)|
1,70,55,57,0,0,0,0,0,192,0,-1--1--1,,1|(0,0)|
1,71,57,58,1,0,0,0,0,192,0,-1--1--1,,1|(1194,248)|
1,72,60,58,1,0,0,0,0,192,0,-1--1--1,,1|(1200,384)|
1,73,62,58,0,0,0,0,0,192,0,-1--1--1,,1|(0,0)|
///---\\\
:GRAPH Output
:TITLE pH value
:X-AXIS Time
:X-LABEL years
:SCALE
:VAR pH value
:Y-MIN 0
:DATASET 
:LINE-WIDTH 3
:VAR Forest
:Y-MIN 0
:DATASET 
:LINE-WIDTH 3
:SCALE
:VAR Ocean surface
:Y-MIN 0
:DATASET 
:LINE-WIDTH 3

:TABLE Table
:TITLE Table
:PRETTYNUM
:PRINT-EVERY 1
:X-MIN 0
:X-MAX 500
:TIME-DOWN
:FIRST-CELLWIDTH 15
:CELLWIDTH 14
:FONT Times New Roman|12||0-0-0
:VAR Atmosphere
:DATASET 
:VAR Terrestrial
:DATASET 
:VAR Surface Ocean
:DATASET 
:VAR Soils
:DATASET 
:VAR Deep Ocean
:DATASET 
:VAR Fossil Fuels
:DATASET 

:GRAPH With_Emissions
:TITLE Carbon Levels inc Fossil Fuels
:SCALE
:VAR Atmosphere
:Y-MIN 0
:Y-MAX 10000
:DATASET 
:LINE-WIDTH 3
:VAR Terrestrial
:Y-MIN 0
:Y-MAX 10000
:DATASET 
:LINE-WIDTH 3
:VAR Surface Ocean
:Y-MIN 0
:Y-MAX 10000
:DATASET 
:LINE-WIDTH 3
:VAR Fossil Fuels
:Y-MIN 0
:Y-MAX 10000
:DATASET 
:LINE-WIDTH 3
:L<%^E!@
1:Current.vdfx
4:Time
5:Atmosphere
9:Current
19:90,0
24:0
25:250
26:250
31:0,ReferenceMode
23:0
15:0,0,0,0,0,0
27:2,
34:0,
42:0
72:0
73:0
95:0
96:0
97:0
77:0
78:0
102:1
93:0
94:0
92:0
91:0
90:0
87:0
75:
43:
103:8,8,8,3,8
105:0,0,0,0,0,0,0,0,0,0
104:Courier|12||0-0-0|0-0-0|-1--1--1|0-0-255|192-192-192|-1--1--1