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Consistent with the provisions of the Convention, in particular Article 7.2(a) and Article 4.2 (a) and 4.2 (b):

a) Parties shall periodically review [the implementation by Parties of their commitments under the Convention] [overall progress towards the ultimate objective of the Convention and actions related to mitigation, adaptation, finance, technology transfer and other means of implementation], in the light of the best available scientific information [as well as relevant technical, social and economic information,] [and taking account of observed impacts and efforts made to adapt to climate change with avoidance of damage to SIDS and LDCs being a primary benchmark for the assessment] [, bearing in mind the changes in circumstances of the Parties], including a comprehensive review [not later than 2016] [at least five years before the end of the commitment period], incorporating consideration of future emission reduction requirements and targets in light of the findings of the latest assessment report of the IPCC.

b) The long-term global goal for emission reductions shall be updated to reflect progress in scientific knowledge. To allow for these updates, the 2 ^oC goal shall be broken down into partial targets: initially, a 0.2 ^oC temperature increase per decade over ten decades. Every ten years, the partial target shall be evaluated, with a view to possibly redefining it, taking into account advances in scientific knowledge.

Alternative to subparagaph (b):

This long-term target should be reviewed no later than 2015 and on a regular basis thereafter. Such a review must be informed by the experiences and observations of Parties, the findings of the Fifth Assessment Report of the IPCC and other relevant scientific information. The Conference of the Parties will be tasked with the responsibility of setting interim short-term targets and monitoring the achievement of these targets. In these reviews, adaptive risk management strategies, to compensate for shortfalls, should be utilized, as they allow for immediate progress and also permit adjustment of strategies as actual outcomes and impacts in developing countries, in particular LDCs and SIDS, are observed. Where there are threats of serious or irreversible damage, the precautionary principle dictates that lack of full scientific certainty should not be used as a reason for postponing measures. In this context, the avoidance of further negative climate change impacts on developing countries, in particular LDCs and SIDS, must be one of the key benchmarks for assessing the adequacy of our long-term goal.

The Conference of the Parties serving as the meeting of the Parties to this Protocol shall undertake reviews of this Protocol, including the consideration of commitments of the Parties for subsequent periods, in light of the best available scientific information and assessments on climate change and its impacts, as well as relevant technical, social and economic information, bearing in mind the changes in circumstances of the Parties. The first review shall take place at least five years before the end of the commitment period, and further reviews shall take place at regular intervals and in a timely manner. Based on these reviews, the Conference of the Parties serving as the meeting of the Parties to this Protocol shall take appropriate action, which may include the adoption of amendments to Annex B (commitments by developed country Parties) and Annex C (actions by developing country Parties). The Conference of the Parties serving as the meeting of the Parties to this Protocol shall, at its first session or as soon as practicable thereafter, identify elements, including the economic development stages, response capabilities and shares of greenhouse gas emissions in the world, to be considered as criteria for changes in circumstances of the Parties.