The Paris Agreement, drawn up for two weeks in Paris at the 21st United Nations Conference of the Parties (COP21) on Climate Change (UNFCCC) and adopted on 12 December 2015 marked a historic turning point in the fight against global climate change, as world leaders representing 195 nations agreed on an agreement containing commitments from all countries to combat climate change and adapt to its impact. Implementation of the agreement by all Member States will be evaluated every five years, with the first evaluation in 2023. The result will be used as an input for new national contributions from Member States.  The inventory will not be national contributions/achievements, but a collective analysis of what has been achieved and what remains to be done. Recognizing that many developing countries and small island developing states that have contributed the least to climate change are most likely to suffer the consequences, the Paris Agreement contains a plan for developed countries – and others that are able to do so – to continue to provide financial resources to help developing countries reduce and increase their capacity to withstand climate change. The agreement builds on the financial commitments of the 2009 Copenhagen Accord, which aimed to increase public and private climate finance to developing countries to $100 billion per year by 2020. (To put it in perspective, in 2017 alone, global military spending amounted to about $1.7 trillion, more than a third of which came from the United States. The Copenhagen Pact also created the Green Climate Fund to mobilize transformation funding with targeted public dollars. The Paris agreement expected the world to set a higher annual target by 2025 to build on the $100 billion target by 2020 and create mechanisms to achieve this. Negotiators of the agreement said that the INDCs presented at the time of the Paris conference were not sufficient. concerned that aggregate greenhouse gas emission estimates for 2025 and 2030, resulting from projected national contributions, are not covered by the most cost-effective scenarios at 2oC, but result in a forecast level of 55 gigatonnes.
In 2030, and acknowledging “that much greater efforts will be needed to reduce emissions in order to keep the increase in the average global temperature to less than 2 degrees Celsius by reducing emissions to 40 gigatonnes or 1.5 degrees Celsius.”  [Necessary clarifications] of NDCs become NDCs – determined contributions at the national level – as soon as a country formally adheres to the agreement. There are no specific requirements as to how or how many countries should reduce emissions, but there were political expectations about the nature and rigour of the targets set by different countries. As a result, the scale and ambition of national plans vary widely, largely reflecting each country`s capacity, level of development and contribution to emissions over time. China, for example, has committed to cleaning up its CO2 emissions by 2030 at the latest and reducing CO2 emissions per unit of gross domestic product (GDP) by 60-65% by 2030 from 2005 levels. India has set a target of reducing emissions intensity by 33-35% from 2005 levels by 2030 and producing 40% of its electricity from non-fossil fuels. The EU and its member states are among the nearly 190 parties to the Paris Agreement. The EU formally ratified the agreement on 5 October 2016, allowing it to enter into force on 4 November 2016. In order for the agreement to enter into force, at least 55 countries representing at least 55% of global emissions had to file their ratification instruments.