Fourth Carbon Budget Review – part 1

Assessment of climate risk and the international response

We have published the review of the fourth carbon budget in 2 stages, this report focuses on developments in three categories of circumstance on which the budget was set: climate science, international circumstances and EU pathways. We take IPCC report findings and draw out implications for carbon budgets, and assess EU and international circumstances.

The Climate Change Act states that it must be based on advice from the Committee, and must consider whether there has been a significant change in the circumstances upon which the budget was set. Only if there is a significant change, demonstrable on the basis of evidence and analysis, can the budget be changed. Part 2 of the review ‘The cost-effective path to the 2050 target’ is available here

Fourth Carbon Budget Review – part 1 -Assessment of climate risk and the international response

• Full report (single spread)
• Full report (double spreads to save on printing)
• Executive Summary

Supporting data and research

• Chapter 1 – exhibits
• Chapter 2 – exhibits
• Chapter 3 – exhibits
• Chapter 4 – exhibits
• Met Office, Hadley Centre – Updated projections of global emissions and temperatures
• Data sheets accompanying Met Office Hadley Centre report
• University College London (2013) Modelling of global_energy scenarios under CO₂ emissions pathways with TIAM-UCL