Estimating and tracking the remaining carbon budget for stringent climate targets

Area of Science:

• Climate Science
• Environmental Science

Background:

• Global warming is directly proportional to cumulative anthropogenic carbon dioxide emissions.
• The Paris Agreement sets a limit for global average temperature increase.
• Estimates of the remaining carbon budget vary widely, hindering effective emission reduction targets.

Purpose of the Study:

• To present a framework for tracking remaining carbon budget estimates.
• To understand how scientific advancements improve these estimates over time.
• To reconcile discrepancies in carbon budget estimates and reduce future uncertainty.

Main Methods:

• Developing a framework to monitor evolving carbon budget estimates.
• Analyzing factors contributing to the range of current estimates.
• Proposing methods for uncertainty reduction in future projections.

Main Results:

• The proposed framework allows for systematic tracking of carbon budget estimates.
• It provides insights into the progression of scientific understanding impacting these budgets.
• The framework facilitates a clearer reconciliation of differing budget estimates.

Conclusions:

• A standardized framework can improve the reliability of remaining carbon budget estimates.
• Reducing uncertainty in carbon budgets is crucial for meeting Paris Agreement goals.
• This approach supports evidence-based climate policy and emission reduction strategies.