The initial commitment period of the Kyoto Protocol was until 2012. This year, delegates at COP18 in Doha, Qatar, agreed to extend the agreement until 2020 (excluding some developed countries that had withdrawn). They also reaffirmed their 2011 commitment at COP17 in Durban, South Africa, to create a new comprehensive climate agreement by 2015 that would commit all major emitters not covered by the Kyoto Protocol – such as China, India and the United States – to reduce their greenhouse gas emissions. The new treaty – the future Paris Agreement – is expected to completely replace the Kyoto Protocol by 2020. However, the Paris Agreement entered into force earlier than planned, in November 2016. The Paris Agreement was opened for signature on 22 April 2016 (Earth Day) at a ceremony in New York.  After several European Union states ratified the agreement in October 2016, enough countries that had ratified the agreement were producing enough greenhouse gases worldwide for the agreement to enter into force.  The agreement entered into force on November 4, 2016.  The agreement recognises the role of stakeholders outside the parties in the fight against climate change, including cities, other sub-national authorities, civil society, the private sector and others. Professor John Shepherd of the National Centre for Oceanography at the University of Southampton says the deal contains welcome aspirations, but few people know how difficult it will be to achieve the goals. Adaptation issues were further emphasized in the drafting of the Paris Agreement. Collective long-term adaptation objectives are included in the agreement and countries are held accountable for their adaptation measures, making adaptation a parallel component of the agreement with mitigation.  Adaptation objectives focus on improving adaptive capacity, increasing resilience and limiting vulnerability.
 In quantifying the damage that carbon pollution does to society, Trump views America as an island in itself – and we all know what climate change is doing to the islands. The NRDC is working to make the Global Climate Action Summit a success by encouraging more ambitious commitments to the historic 2015 agreement and initiatives to reduce pollution. The Paris Agreement has a “bottom-up” structure unlike most international environmental treaties, which are “top-down” and are characterized by internationally defined norms and goals that must be implemented by states.  Unlike its predecessor, the Kyoto Protocol, which sets commitment targets with the force of law, the Paris Agreement, which emphasizes consensus-building, allows for voluntary, nationally defined targets.  Specific climate goals are therefore promoted politically and are not legally linked. Only the processes that govern the preparation of reports and the consideration of these objectives are prescribed by international law. This structure is particularly noteworthy for the United States – since there are no legal mitigation or funding objectives, the agreement is considered an “executive agreement rather than a treaty.” Since the 1992 UNFCCC treaty received Senate approval, this new agreement does not need new congressional legislation to enter into force.  These transparency and accountability provisions are similar to those of other international agreements.
While the system does not involve financial sanctions, the requirements are aimed at easily tracking each nation`s progress and fostering a sense of global peer pressure, thus preventing any hesitation between countries considering doing so. The implementation of the agreement by all member countries will be evaluated every 5 years, the first evaluation will take place in 2023. The result will serve as a contribution to new Nationally Determined Contributions by Member States.  The assessment is not a contribution/achievement of individual countries, but a collective analysis of what has been achieved and what still needs to be done. Although the United States and Turkey are not party to the agreement because they have not declared their intention to withdraw from the 1992 UNFCCC, as Annex 1 countries of the UNFCCC, they will continue to be required to produce national communications and an annual greenhouse gas inventory.  Carbon dioxide, nitrous oxide and methane are gases that accumulate in the atmosphere and prevent heat from radiating from the Earth`s surface into space, creating the so-called greenhouse effect. According to the Intergovernmental Panel on Climate Change (IPCC), the leading international scientific body working on the issue, the concentration of these heat storage gases has increased dramatically since pre-industrial times to levels not seen in at least 800,000 years. Carbon dioxide (the main cause of climate change) has increased by 40%, nitrous oxide by 20% and methane by 150% since 1750 – mainly from the combustion of dirty fossil fuels.
The IPCC says it is “extremely likely” that these emissions are mainly responsible for the rise in global temperatures since the 1950s. At the same time, deforestation and forest degradation have also contributed to their fair share of global carbon emissions. The agreement contains commitments from all countries to reduce their emissions and work together to adapt to the effects of climate change and calls on countries to strengthen their commitments over time. The agreement provides an opportunity for developed countries to assist developing countries in their mitigation and adaptation efforts, while providing a framework for transparent monitoring and reporting on countries` climate goals. Although the agreement was welcomed by many, including French President François Hollande and UN Secretary-General Ban Ki-moon, 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.  He called the Paris talks a fraud with “nothing to do, only to promise” and believes that only a general 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.  The desire for a more ambitious goal was maintained in the agreement – with the promise to further limit global temperatures to 1.5°C.
When the agreement reached enough signatures on October 5, 2016 to cross the threshold, US President Barack Obama said, “Even if we achieve all the goals.” We will only reach part of where we need to go. He also said that “this agreement will help delay or avoid some of the worst consequences of climate change. It will help other countries reduce their emissions over time and set bolder targets as technology advances, all within a robust transparency system that allows each country to assess the progress of all other nations. [ 27]  Following a campaign promise, Trump – a climate denier who claimed that climate change was a “hoax” committed by China – announced in June 2017 his intention to withdraw the United States from the Paris Agreement. But despite the president`s statement from the rose garden that “we`re going out,” it`s not that easy. The withdrawal process requires the agreement to be in force for three years before a country can formally announce its intention to leave. Then he will have to wait a year before leaving the pact. This means that the U.S. will not return to the U.S. until September 4 at the earliest.
November 2020 could officially leave – a day after the presidential elections. Even a formal withdrawal would not necessarily be permanent, experts say; A future president could return to the board in just one month. The Kyoto Protocol, a landmark environmental treaty adopted at COP3 in Japan in 1997, is the first time that countries have agreed on country-specific emission reduction targets that are legally mandated. The protocol, which only entered into force in 2005, set binding emission reduction targets only for developed countries, based on the assumption that they were responsible for most of the Earth`s high greenhouse gas emissions. The United States first signed the agreement, but never ratified it; President George W. Bush argued that the deal would hurt the U.S. economy because it would not include developing countries such as China and India. Without the participation of these three countries, the effectiveness of the treaty proved limited, as its objectives covered only a small fraction of total global emissions. The EU and its Member States are among the approximately 190 parties to the Paris Agreement. The EU officially ratified the agreement on 5 October 2016, allowing it to enter into force on 4 November 2016.
For the agreement to enter into force, at least 55 countries representing at least 55% of global emissions had to deposit their instruments of ratification. .