Blue Carbon Financing of Mangrove Conservation in the Abidjan Convention Region: A Feasibility Study

Ghana

7,600

Mangrove area – year 0

320.20

C density top m of soil (Mg/ha)

97.40

C density of above + below ground biomass (Mg/ha)

$310

Above ground land value (US$/ha)

Years (end of)

Present value

1

2

3

20

7,547

7,494

7,441

6,604

Area of Blue Carbon (ha)

53

52

52

46

Area lost (ha) @0.7%/yr

17,035

16,796

16,679

14,801

Soil carbon exposed (Mg)

852

1,692

2,525

15,842

Soil carbon cumulative loss (Mg)

5,182

5,109

5,073

4,502

Biomass carbon lost (Mg)

6,033

6,801

7,599

20,344

Total C emitted (Mg)

6,134

6,900

7,697

20,431

Carbon benefit of conservation (Mg)

$1,675,397

$18,402

$20,699

$23,092

$61,294

C value at US$ 3/tCO 2 e, 5%

$2,792,328

$30,670

$34,499

$38,486

$102,156

C value at US$ 5/tCO 2 e, 5%

$1,248,983

$18,402

$20,699

$23,092

$61,294

C value at US$ 3/tCO 2 e, 8%

$2,081,639

$30,670

$34,499

$38,486

$102,156

C value at US$ 5/tCO 2 e, 8%

$21,227

$1,383

$1,417

$1,460

$2,145

Cost to conserve ($25/ha estab., US$ 1/yr), 5%

$184,138

$12,715

$12,909

$13,189

$17,651

Cost to conserve ($232/ha estab., US$ 7/yr), 5%

$16,378

$1,383

$1,417

$1,460

$2,145

Cost to conserve ($25/ha estab., US$ 1/yr), 8%

$142,825

$12,715

$12,909

$13,189

$17,651

Cost to conserve ($232/ha estab., US$ 7/yr), 8%

$1,744,730

$16,465

$32,700

$48,822

$306,245

Opportunity cost, 5%

$1,244,153

$16,465

$32,700

$48,822

$306,245

Opportunity cost, 8%

High carbon price

Low carbon price

Net Benefit of Conservation (million US$)

8%

8%

5%

5%

$0.8

($0.0)

$1.0

($0.1)

Low cost of conservation

$0.7

($0.1)

$0.9

($0.3)

High cost of conservation

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