The document provides an overview of the key elements and history of international climate governance, including the UNFCCC, Kyoto Protocol, Paris Agreement, and the 2018 Paris Agreement Rulebook agreed at COP24. It discusses the main provisions and outcomes on mitigation, adaptation, finance, technology development and transfer, transparency, compliance, and loss and damage. The summary highlights that the Rulebook provided further guidance on NDCs, transparency, and some other areas, but key issues around carbon markets and other elements were not resolved. It also discusses implications for domestic climate law and policy.