A corporate guide to evaluating carbon projects at the earliest stages
Q4 2025
Calyx Carbon Integrity Index
Average quarterly GHG integrity
Issuances
4.0
out of 10
2.4%
vs. Q3 '25
Retirements
3.6
out of 10
5.9%
vs. Q3 '25
Calyx-ClearBlue Carbon Price-Integrity Index
Average December price by rating tier
T1 Price
$9.03
1.2%
vs. Nov '25
T2 Price
$6.29
1.8%
vs. Nov '25
T3 Price
$6.17
2.0%
vs. Nov '25
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