Comparing transformation pathways across major economies

摘要: This paper explores the consequences of different policy assumptions and derivation globally consistent, national low-carbon development pathways for seven largest greenhouse gas (GHG)–emitting countries (EU28 as a bloc) in world, covering approximately 70% global CO2 emissions, line with their contributions to limiting average temperature increase well below 2 °C compared pre-industrial levels. We introduce methodology developing these by initially discussing process which integrated assessment model (IAM) teams interacted derived boundary conditions form carbon budgets countries. Carbon so 2011–2050 period were then used eleven energy-economy models IAMs producing world up 2050. present comparative resulting challenges opportunities associated them. Our results indicate quite mitigation countries, shown way emission reductions are split between sectors economies technological alternatives.