The Paris Agreement, signed in 2015, is a global effort to combat climate change. It was a landmark achievement, with 195 countries coming together and agreeing to take action on climate change. But in recent years, there has been uncertainty about whether the United States is still part of the Paris Agreement.

In 2017, then-US President Donald Trump announced that the US would withdraw from the Paris Agreement, citing concerns about the potential economic impact on the country. However, the withdrawal process was not immediate, and there were various legal challenges to the decision.

In November 2020, the US officially withdrew from the Paris Agreement, making it the only country in the world to do so. However, in January 2021, newly elected President Joe Biden signed an executive order to rejoin the Paris Agreement. This move was welcomed by other countries and seen as a positive step towards global cooperation on climate change.

So, to answer the question, the US is currently a part of the Paris Agreement, having rejoined it under President Biden`s leadership. The US is now working with other countries to reduce greenhouse gas emissions, limit the rise in global temperatures, and address the impacts of climate change.

As part of the Paris Agreement, countries are required to submit their own national plans for reducing emissions, known as Nationally Determined Contributions (NDCs). In April 2021, the US submitted its new NDC, which includes a target of reducing emissions by 50-52% below 2005 levels by 2030. This is a significant increase on the previous US target under the Paris Agreement and demonstrates a commitment to taking action on climate change.

In conclusion, despite previous uncertainty and political changes in the US, the country is currently part of the Paris Agreement. This is a positive move towards global cooperation on climate change and demonstrates a commitment to reducing emissions and addressing the impacts of climate change. The US has submitted an ambitious new NDC and is now working with other countries to achieve the goals of the Paris Agreement.