YEREVAN, Oct. 19 -- A 2025 money deadline in the world's nature pact has probably passed unmet, a United Nations report says, as governments gathered in the Armenian capital on Sunday for the opening of the pact's first global review.

Armenian Prime Minister Nikol Pashinyan declared COP17 open, Xinhua reported, with the parties to the Convention on Biological Diversity due to conduct that review of the Kunming-Montreal Global Biodiversity Framework agreed in 2022. The convention's calendar lists formal sessions from October 19 to 30.

The deadline sits in Target 19, which asks developed countries to raise international biodiversity finance for developing nations to at least $20 billion a year by 2025 and $30 billion by 2030, inside a $20...