Table 2 Summary of project types and digitization metrics across six carbon registries in the global database.

From: An open-access database of nature-based carbon offset project boundaries

Registry Name

Project types

Total projects

% Digitized

% Polygon

Num. IFM

Num. AD

Num. ARR

American Carbon Registry

88

5

3

96

27.1

88.5

BioCarbon Registry

0

1

0

1

0.0

100.0

Climate Action Reserve

128

2

4

134

8.2

97.8

EcoRegistry

0

19

14

33

3.0

97.0

Registry Name

Project types

Total projects

% Georeferenced

% Polygon

Num. IFM

Num. AD

Num. ARR

Gold Standard

0

0

17

17

64.7

64.7

Verra

36

106

152

294

26.5

92.9

Totals

252

133

190

575

22.1

92.7

  1. It includes the percentage of georeferenced projects (excluding linear geometries following developer protocols) and the percentage of complete polygon boundaries (excluding point geometries).