Protocol and for the commitment of those countries to GHG reductions. Updated inventories must be submitted annually by Annex I countries. The US did not ratify the Kyoto Protocol, while Canada denounced it in 2012. The Kyoto Protocol was ratified by all the other Annex I Parties. All Annex I Parties, excluding the US, participated in the 1st Kyoto commitment period. 37 Annex I countries and the EU agreed to second-round Kyoto targets. These countries are Australia, all members of the European Union, Belarus, Iceland, Kazakhstan, Norway, Switzerland, and Ukraine. Belarus, Kazakhstan and Ukraine stated that they might withdraw from the Protocol or not put into legal force the Amendment with second round targets. Japan, New Zealand, and Russia participated in Kyoto's first round but did not take on new targets in the second commitment period. Other developed countries without second-round targets were Canada (which withdrew from the Kyoto Protocol in 2012) and the United States. All countries that remained parties to the Kyoto Protocol met their first commitment period targets. National communication A "National Communication" is a type of report submitted by the countries that have ratified the United Nations Framework Convention on Climate Change (UNFCCC). Developed countries are required to submit National Communications every four years and developing countries should do so. Some Least Developed Countries have not submitted National Communications in the past 5–15 years, largely due to capacity constraints. National Communication reports are often several hundred pages long and cover a country's measures to mitigate greenhouse gas emissions as well as a description of its vulnerabilities and impacts from climate change. National Communications are prepared according to guidelines that have been agreed by the Conference of the Parties to the UNFCCC. The (Intended) Nationally Determined Contributions (NDCs) that form the basis of the Paris Agreement are shorter and less detailed but also follow a standardized structure and are subject to technical review by experts. Paris Agreement The parties met in Durban, South Africa in 2011 and expressed "grave concern" that efforts to limit global warming to less than 2 or 1.5 °C, relative to the pre-industrial level, appeared inadequate. They committed to develop an "agreed outcome with legal force under the Convention applicable to all Parties". At the 2015 UN Climate Change Conference in Paris the then-196 parties agreed to aim to limit global warming to less than 2 °C, and try to limit the increase