{UTF-8}
emissions = WITH LOOKUP (
	Time,
		([(0,0)-(500,10)],(0,5.5),(50,6),(100,6.5),(150,6),(200,5),(250,4),(300,3),(350,2),\
		(400,1.9),(450,1.5),(500,1.2) ))
	~	Gt/yr
	~		|

Atmosphere= INTEG (
	emissions+CO2 release+T decomposition+T respiration-CO2 absorption-T photosynthesis,
		750)
	~	Gt
	~		|

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

Surface Ocean= INTEG (
	CO2 absorption+ocean mixing-M death-CO2 release,
		1020)
	~	Gt
	~		|

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

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

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

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

Fossil Fuels= INTEG (
	-emissions,
		10000)
	~	Gt
	~		|

M death=
	91.6 * (Surface Ocean/1020)
	~	Gt/yr
	~		|

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

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

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

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

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

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

FINAL TIME  = 500
	~	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|120,120,100,0
10,1,Atmosphere,593,76,66,34,3,131,0,53,0,0,0,0,128-192-255,128-192-255,Comic Sans MS|12|B|128-192-255
10,2,Terrestrial,350,187,63,28,3,131,0,53,0,0,0,0,255-0-0,255-0-0,Comic Sans MS|12|B|0-0-0
10,3,Surface Ocean,865,191,59,28,3,131,0,53,0,0,0,0,0-255-0,0-255-0,Comic Sans MS|12|B|0-0-0
10,4,Soils,227,410,59,40,3,131,0,53,0,0,0,0,128-128-0,255-255-128,Comic Sans MS|12|B|0-0-0
10,5,Deep Ocean,947,421,55,31,3,131,0,53,0,0,0,0,192-128-192,192-128-192,Comic Sans MS|12|B|0-0-0
1,6,8,1,4,0,0,22,0,0,0,-1--1--1,,1|(543,141)|
1,7,8,2,100,0,0,22,0,0,0,-1--1--1,,1|(473,181)|
11,8,284,543,181,10,8,33,3,0,0,2,0,0,0
10,9,T respiration,500,181,33,16,40,3,0,32,1,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12||0-0-0
1,10,12,1,4,0,0,22,0,0,0,-1--1--1,,1|(372,56)|
1,11,12,4,100,0,0,22,0,0,0,-1--1--1,,1|(209,218)|
11,12,204,209,56,8,10,34,3,0,0,3,0,0,0
10,13,T decomposition,209,32,78,14,40,3,0,32,-1,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12||0-0-0
1,14,16,4,4,0,0,22,0,0,0,-1--1--1,,1|(326,409)|
1,15,16,2,100,0,0,22,0,0,0,-1--1--1,,1|(374,307)|
11,16,188,374,409,8,10,34,3,0,0,1,0,0,0
10,17,T death,374,435,38,16,40,3,0,32,-1,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12||0-0-0
1,18,20,3,4,0,0,22,0,0,0,-1--1--1,,1|(910,131)|
1,19,20,1,100,0,0,22,0,0,0,-1--1--1,,1|(779,91)|
11,20,348,910,91,10,8,33,3,0,0,2,0,0,0
10,21,CO2 absorption,830,91,70,29,40,3,0,32,0,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12||0-0-0
1,22,24,1,4,0,0,22,0,0,0,-1--1--1,,1|(613,143)|
1,23,24,3,100,0,0,22,0,0,0,-1--1--1,,1|(714,185)|
11,24,220,613,185,10,8,33,3,0,0,4,0,0,0
10,25,CO2 release,658,185,35,16,40,3,0,32,1,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12||0-0-0
1,26,28,5,4,0,0,22,0,0,0,-1--1--1,,1|(854,405)|
1,27,28,3,100,0,0,22,0,0,0,-1--1--1,,1|(809,307)|
11,28,172,809,405,8,10,34,3,0,0,1,0,0,0
10,29,M death,809,431,40,16,40,3,0,32,-1,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12||0-0-0
10,30,Fossil Fuels,582,416,55,26,3,131,0,54,0,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12|B|255-255-255
1,31,33,1,4,0,0,22,0,0,0,-1--1--1,,1|(577,189)|
1,32,33,30,100,0,0,22,0,0,0,-1--1--1,,1|(577,337)|
11,33,380,577,276,10,8,33,3,0,0,4,0,0,0
10,34,emissions,641,276,54,19,40,131,0,32,-1,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12||0-0-0
1,35,4,12,1,0,0,0,0,64,0,-1--1--1,,1|(127,220)|
1,36,2,8,1,0,0,0,0,64,0,-1--1--1,,1|(464,216)|
1,37,1,20,1,0,0,0,0,64,0,-1--1--1,,1|(862,121)|
1,38,3,28,1,0,0,0,0,64,0,-1--1--1,,1|(792,296)|
1,39,3,24,1,0,0,0,0,64,0,-1--1--1,,1|(710,227)|
1,40,2,17,1,0,0,0,0,64,0,-1--1--1,,1|(445,299)|
12,41,3867946,1393,228,279,269,3,188,0,0,1,0,0,0
Output
12,42,3867944,566,756,474,295,3,188,0,0,1,0,0,0
Table
1,43,45,2,4,0,0,22,0,0,0,-1--1--1,,1|(303,134)|
1,44,45,1,100,0,0,22,0,0,0,-1--1--1,,1|(420,102)|
11,45,0,303,102,10,8,33,3,0,0,4,0,0,0
10,46,T photosynthesis,390,102,77,29,40,131,0,32,0,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12||0-0-0
1,47,1,45,1,0,0,0,0,64,0,-1--1--1,,1|(442,156)|
12,48,4523014,1422,785,308,271,3,188,0,0,1,0,0,0
With_Emissions
1,49,51,3,4,0,0,22,0,0,0,-1--1--1,,1|(904,256)|
1,50,51,5,100,0,0,22,0,0,0,-1--1--1,,1|(904,350)|
11,51,0,904,302,10,8,33,3,0,0,4,0,0,0
10,52,ocean mixing,974,302,60,16,40,3,0,32,-1,0,0,0,-1--1--1,0-0-0,Comic Sans MS|12||0-0-0
1,53,5,51,1,0,0,0,0,64,0,-1--1--1,,1|(944,351)|
10,54,Time,700,341,34,12,8,2,0,3,-1,0,0,0,128-128-128,0-0-0,|0||128-128-128
1,55,54,34,0,0,0,0,0,64,0,-1--1--1,,1|(678,317)|
12,56,4785136,1907,132,150,150,3,12,0,0,1,0,0,0
Emissions
///---\\\
:GRAPH Output
:TITLE Carbon Levels Living Biosphere
:X-AXIS Time
:X-LABEL years
:SCALE
:VAR Atmosphere
:Y-MIN 0
:LINE-WIDTH 3
:VAR Terrestrial
:Y-MIN 0
:LINE-WIDTH 3
:VAR Surface Ocean
:Y-MIN 0
: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
:VAR Terrestrial
:VAR Surface Ocean
:VAR Soils
:VAR Deep Ocean
:VAR Fossil Fuels
:VAR emissions

:GRAPH With_Emissions
:TITLE Carbon Levels inc Fossil Fuels
:SCALE
:VAR Atmosphere
:Y-MIN 0
:Y-MAX 10000
:LINE-WIDTH 3
:VAR Terrestrial
:Y-MIN 0
:Y-MAX 10000
:LINE-WIDTH 3
:VAR Surface Ocean
:Y-MIN 0
:Y-MAX 10000
:LINE-WIDTH 3
:VAR Fossil Fuels
:Y-MIN 0
:Y-MAX 10000
:LINE-WIDTH 3

:GRAPH Emissions
:TITLE Emissions
:SCALE
:VAR emissions
:LINE-WIDTH 3
:L<%^E!@
1:Current.vdf
9:Current
23:0
15:0,0,0,0,0,0
19:100,0
27:2,
34:0,
4:Time
5:emissions
24:0
25:500
26:500