The authors of the agreement have incorporated a timetable for withdrawal that President Trump must follow – to prevent it from irreparably harming our climate. Article 28 of the Convention allows parties to withdraw from the agreement after sending a notice of withdrawal to the depositary. The notice period may take place no earlier than three years after the entry into force of the Agreement for the country. The revocation shall take effect one year after notification to the depositary. Alternatively, the agreement stipulates that withdrawal from the UNFCCC, under which the Paris Agreement was adopted, would also remove the state from the Paris Agreement. The conditions for exiting the UNFCCC are the same as for the Paris Agreement. The agreement does not contain any provisions in case of non-compliance. 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 had ratified the agreement and were producing enough greenhouse gases worldwide to allow the agreement to enter into force.  The agreement entered into force on November 4, 2016.
 Since Trump`s announcement, US envoys have continued to participate in UN climate negotiations as required to solidify the details of the agreement. Meanwhile, thousands of leaders across the country have stepped in to fill the void created by the lack of federal climate leadership, reflecting the will of the vast majority of Americans who support the Paris Agreement. There has been a wave of participation among city and state officials, business leaders, universities, and individuals in initiatives such as America`s Pledge, the U.S. Climate Alliance, We Are Still In, and the American Cities Climate Challenge. Complementary and sometimes overlapping movements aim to deepen and accelerate efforts to combat climate change at local, regional and national levels. Each of these efforts is focused on the U.S. working toward the goals of the Paris Agreement, despite Trump`s attempts to steer the country in the opposite direction. The extent to which each country is on track to meet its commitments under the Paris Agreement can be continuously tracked online (via the Climate Action Tracker and the Climate Clock).
The level of NDCs set by each country will set that country`s objectives. However, the „contributions“ themselves are not binding under international law because they do not have the specificity, normative character or mandatory language necessary to create binding norms.  In addition, there will be no mechanism to force a country to set a target in its NDC on a specific date and no application if a target set in an NDC is not met.   There will be only one „Name and Shame“ system, or as János Pásztor, UN Under-Secretary-General for Climate Change, told CBS News (USA), a „Name and Encouragement“ plan.  Given that the agreement does not foresee any consequences if countries do not comply with their obligations, such a consensus is fragile. A net of nations withdrawing from the deal could trigger the withdrawal of more governments and lead to a total collapse of the deal.  As a contribution to the objectives of the agreement, countries have submitted comprehensive national climate action plans (Nationally Determined Contributions, NDCs). These are not yet sufficient to meet the agreed temperature targets, but the agreement points the way for further action. The agreement recognises the role of non-party stakeholders in the fight against climate change, including cities, other sub-national authorities, civil society, the private sector and others.
The Paris Agreement is a historic environmental agreement adopted by almost all countries in 2015 to combat climate change and its negative impacts. The agreement aims to significantly reduce global greenhouse gas emissions in order to limit the increase in global temperature this century to 2 degrees Celsius above pre-industrial levels, while looking for ways to limit the increase to 1.5 degrees. The agreement contains commitments from all major emitting countries to reduce their pollution from climate change and to strengthen these commitments over time. The Compact provides a means for developed countries to support developing countries in their mitigation and adaptation efforts, and provides a framework for transparent monitoring, reporting and tightening of countries` individual and collective climate goals. The Paris Agreement is the world`s first comprehensive climate agreement.  In 1992, President George H.W. Bush joined 107 other heads of state at the Earth Summit in Rio, Brazil, to adopt a number of environmental agreements, including the UNFCCC framework, which is still in force today. The international treaty aims to prevent dangerous human interference in Earth`s climate systems in the long term.
The Pact does not set greenhouse gas emission limits for individual countries and does not include enforcement mechanisms, but provides a framework for international negotiations on future agreements or protocols to set binding emission targets. Participating countries meet annually at a Conference of the Parties (COP) to assess their progress and continue discussions on how best to tackle climate change. INDCs become NDCs – Nationally Determined Contributions – once a country formally accedes to the agreement. .