John Kerry signed the Paris Agreement for the USA with his granddaughter in April 2016. It was ratified on 3 Sep 2016.
To find the latest (I)NDC for the USA click here at the UN’s NDC Registry (Interim)
The USA’s pledges
“Several U.S. laws, as well as existing and proposed regulations thereunder, are relevant to the implementation of the U.S. target, including the Clean Air Act (42 U.S.C. §7401 et seq.), the Energy Policy Act (42 U.S.C. §13201 et seq.), and the Energy Independence and Security Act (42 U.S.C. § 17001 et seq.)”
In June 2017 the President of the United States of America announced his intention to pull out of the Paris Agreement, stating that “I was elected to represent the citizens of Pittsburgh, not Paris.” Swiftly refuted by the Mayor of Pittsburgh:
At National level many of the USA’s climate change reducing measures have ceased. To some extent they have been replaced by action at City and business level.
The earliest possible effective withdrawal date by the United States cannot be before November 4, 2020 In accordance with Article 28 of the Paris Agreement, four years after the Agreement came into effect in the United States and one day after the 2020 U.S. presidential election.
As the second highest emitter in the world, lack of ambition from the USA could be disastrous.