Climate Action Tracker Rating System

The Climate Action Tracker rates, 2020 agreements, long-term aims, and current management against whether they are consistent with a country’s fair share effort to the Paris Agreement 1.5°C temperature goal.

Climate Action Tracker Rating System
CRITICALLY INSUFFICIENT
Commitments with this rating fall well outside the fair share range and are not at all consistent with holding warming to below 2°C let alone with the Paris Agreement's stronger 1,5°C limit. If all government targets were in this range, warming would exceed 4°C.

HIGHLY INSUFFICIENT
Commitments with this rating fall outside the fair share range and are not at all consistent with holding warming to below 2°C let alone with the Paris Agreement's stronger 1 .S°C limit. If all government targets were in this range, warming would reach between 3°C and 4°C.

INSUFFICIENT
Commitments with this rating are in the least stringent part of their fair share range and not consistent with holding warming below 2°C let alone with the Paris Agreement's stronger 1,5°C limit. If all government targets were in this range, warming would reach over 2°C and up to 3°C.

2°C COMPATIBLE
Commitments with this rating are consistent with the 2009 Copenhagen 2°C goal and therefore fall within the country's fair share range, but are not fully consistent with the Paris Agreement. If all government targets were in this range, warming could be held below, but not well below, 2°C and still be too high to be consistent with the Paris Agreement 1,5°C limit.

1.5°C PARIS AGREEMENT COMPATIBLE
This rating indicates that a government's efforts are in the most stringent part of its fair share range: it is consistent with the Paris Agreement's 1.5°C limit.

ROLE MODEL
This rating indicates that a government's efforts are more ambitious than what is considered a fair contribution: it is more than consistent with the Paris Agreement's 1.5°C limit.
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Alex

Ecoclimax is defined by Odum (1969) as the culmination state after a succession in a stabilized ecosystem in which maximum biomass (or high information content) and symbiotic function among organisms is kept per unit of available energy flow.