Born Between 2 Generals · Born Between 2 Generals· Cost per ton of CO₂

Earth Fund

Rank climate grants by cost per ton of CO₂ avoided — so a giving portfolio buys the most planet for the money. One honest metric across very different bets. Illustrative.

Portfolio dollars

$295M

CO₂ avoided

20.9 Mt

Blended cost per ton

$14.11/t

Best value first

★ Highest leverage: Clean cookstoves at $6.67/t

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Climate grants ranked by cost per ton of CO₂ avoided
	Grant
1	★ Clean cookstovesCommunities	$20M	3 Mt	$6.67/t	14%
2	Methane capture (landfill)Industry	$45M	6.5 Mt	$6.92/t	31%
3	Grid decarbonizationEnergy	$120M	9 Mt	$13.33/t	43%
4	Tropical reforestationNature	$30M	2 Mt	$15.00/t	10%
5	Direct air capture pilotRemoval	$80M	0.4 Mt	$200.00/t	2%

See the method & per-grant detail →

Most planet for the money

Set a budget and Earth Fund spends it on the cheapest tons first.

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Tropical reforestation$15.00/t

Grant size$30MCO₂ avoided2 Mt

Grid decarbonization$13.33/t

Grant size$120MCO₂ avoided9 Mt

Methane capture (landfill)$6.92/t

Grant size$45MCO₂ avoided6.5 Mt

★ Clean cookstoves$6.67/t

Grant size$20MCO₂ avoided3 Mt

Direct air capture pilot$200.00/t

Grant size$80MCO₂ avoided0.4 Mt

Portfolio: $295M → 20.9 Mt avoidedBlended $14.11/t

Transparent calculation log

earthfund · compute.log

$ earthfund compute --metric cost-per-ton
loaded 5 grant(s)
formula: $/t = grant_dollars / tons_avoided
#1  Clean cookstoves: $20M / 3 Mt = $6.67/t
#2  Methane capture (landfill): $45M / 6.5 Mt = $6.92/t
#3  Grid decarbonization: $120M / 9 Mt = $13.33/t
#4  Tropical reforestation: $30M / 2 Mt = $15.00/t
#5  Direct air capture pilot: $80M / 0.4 Mt = $200.00/t
blended portfolio: $295M / 20.9 Mt = $14.11/t
portfolio fingerprint: 6013ec70
status: ok · illustrative · no secrets used

The fingerprint is a deterministic hash of the ranked portfolio, so the same inputs always produce the same result. No secrets, no network calls.

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