Although the agreement was welcomed by many, including French President François Hollande and UN Secretary-General Ban Ki-moon,[67] criticism also surfaced. For example, James Hansen, a former NASA scientist and climate change expert, expressed anger that most of the deal is made up of „promises“ or goals, not firm commitments. [98] He called the Paris talks a fraud without „any action, only promises“ and believes that only a cross-cutting tax on CO2 emissions, which is not part of the Paris Agreement, would reduce CO2 emissions fast enough to avoid the worst effects of global warming. [98] The extent to which each country is on track to meet its commitments under the Paris Agreement can have an impact online at all times (via the Climate Action Tracker[95] and the Climate Clock). A country`s ability to accede to the agreement is subject to the condition that the national approval necessary to accede to the agreement is obtained. The nature of this national authorization depends on the national constitution and the legal framework of each country. For example, in Australia, the only requirement is notification and introduction of the agreement in Parliament, while in Mexico, the consent of the Senate is also required. In the United States, international agreements can be entered into in a variety of ways, including by the authority of the president, especially if an agreement is consistent with applicable U.S. law. The objective of the agreement is to reduce global warming as described in Article 2, „improving implementation“ of the UNFCCC by:[11] Each year, Parties to the UNFCCC meet to review and discuss progress in the implementation of the Convention, related agreements and their implementation. The Presidency represents the EU in these international meetings known as the „United Nations Climate Change Conferences“ (or COP Conferences of the Parties). They also agreed on the design of the 2018 Facilitation Dialogue (called the Talanoa Dialogue). It will provide a space to assess joint progress towards long-term climate goals next year at COP 24 in Poland.