Top carbon offset providers

Name CACP
rating
Tufts
rating
Local
ratings
CC
criteria
Price
per ton
My
picks
JP Morgan Climate Care Details
   UK company

Tier 1

Rec. w/reservations

14/15

8/10
$12.69Best
#1 Choice
NativeEnergy Details
   US company

Tier 1

Recommended

92%

5/10
$13.23Good
#2 Choice
Carbon Neutral Company Details
   UK company

Tier 1

Rec. w/reservations

10/15

6/10
$10.82
Sustainable Travel International Details
   US nonprofit, resells MyClimate

Tier 1

Recommended

81%

7/10
$29.43
US tax deductible
atmosfair Details
   German nonprofit

Tier 1

Recommended
n/a

9/10
$29.32
German tax deductible
DrivingGreen Details
   US company

Tier 1
unrated

5/10
$8.00
CO2Balance Details
   UK company

Tier 1

11/15

6/10
$14.42
Climate Friendly Details
   Australian company

Recommended

90+%

5/10
$14.78

Summary

I recommend using One Minute Calculator to determine how many tons of CO2 you need to offset, and using JP Morgan Climate Care to offset that amount.

Criteria

Carbon offset providers vary significantly in quality. The providers listed here are some of the best choices for normal consumers.

This table lists providers that are either designated "Tier 1" by the Clean Air-Cool Planet report (Dec. 2006), or listed as a "Recommended" provider in the Tufts Climate Initiative report (Apr. 2007). It also includes ratings of North American providers from the Carbon Concierge COPEM report (Nov. 2008), ratings of Australian providers from Carbon Offset Watch rankings (August 2008), ratings of British providers from Which? magazine (April 2008), and current pricing and quality criteria data from the excellent Carbon Catalog project. (Carbon Catalog offers more details on these, and many other providers.)

The providers listed here meet some of the highest current standards in terms of additionality and transparency. As of February 2009, I recommend using JP Morgan Climate Care because of their high ratings and reasonable pricing.