Which action did the United States take regarding the Paris Agreement in 2017?

• A. Cease participation in the Paris Agreement.
• B. Rejoin the Paris Agreement.
• C. Increase funding for climate projects.
• D. Seek to renegotiate the terms.

Answer: (A)

Understanding how a country's stance toward an international climate treaty changes over time.

In 2017, the United States announced its intention to withdraw from the Paris Agreement, initiating the process to cease participation. This is why the option describing withdrawal is the best answer for that year. The formal withdrawal took effect later, after the required notice period, but the key action in 2017 was to begin leaving the agreement. Rejoining happened under a subsequent administration a few years later, and the other options (increasing funding or renegotiating terms) were not the actions taken in 2017.