The United Nations Climate Action Summit 2019 was held in which of the following cities?

1. A

   Paris

   (a) Paris. The 2015 COP-21 climate agreement was in Paris, not the 2019 UN Climate Action Summit.

2. B

   Geneva

   (b) Geneva. UN offices sit there; the 2019 Climate Action Summit was not a Geneva event.

3. C

   Doha

   (c) Doha. COP-18 (2012) was in Doha; a different climate meeting.

4. D

   New York

   (d) New York. UN Secretary-General António Guterres convened the Climate Action Summit on 23 September 2019 at UN Headquarters, New York. (d) Official key.

Summary. Official key is (d). The 2019 UN Climate Action Summit was in New York. Paris, Geneva and Doha host other climate or UN memories, not this summit.