Prairie Biochar Cooperative
United States · Verdant Ledger Registry · VLR-BC-0058
Permanence · 300 yrs
/ tonne
720 t available
A field journal for your footprint
Canopy helps you and your team measure, reduce, then responsibly compensate, in that order. Calm numbers, honest ranges, and no guilt.
Illustrative factors and fictional projects. Nothing here is a real offset.
Priya Raman’s journal · 24 months
t CO₂e / yr
↓ 18% on the year before
September 2026: Home energy 0.08 of 0.47 tonnes.
Four short sections (home, travel, food and shopping) give a live estimate with an honest range. About four minutes, and it works even with JavaScript off.
Start the calculatorYour top three changes, a goal with a monthly pace, and 30-day challenges with a daily prompt. The greenest tonne is the one never emitted.
Browse 40 actionsThen, for what's left, a marketplace that labels every project as removal or avoidance and shows how long the carbon stays put.
Explore projectsRadical transparency
Some projects pull CO₂ out of the air and store it. Others prevent emissions that would have happened. Both can matter, but they aren’t interchangeable, so every project, cart line and certificate says which one it is and how long the carbon stays put.
How we estimatePermanence · 1,000+ yrs
Mineral storage
Permanence · 80 yrs
20% buffer pool
Permanence · No storage
No stored carbon
Compensate what’s left
United States · Verdant Ledger Registry · VLR-BC-0058
Permanence · 300 yrs
/ tonne
720 t available
Indonesia · Verdant Ledger Registry · VLR-BC-0071
Permanence · 80 yrs
/ tonne
2,600 t available
Kenya · Verdant Ledger Registry · VLR-RF-0193
Permanence · 60 yrs
/ tonne
4,200 t available
For teams
Fernhollow Studio ranks its 24 people by reduction against their own baseline, and prints a two-page monthly report for clients.
See the studioEvery journal starts with a first entry.
Four minutes, four sections, one honest estimate.
Start the calculator