So far, which of the following countries has not ratified the Convention on Biological Diversity?

The United States has signed but never ratified the Convention on Biological Diversity, so it remains the country that has not ratified it.

India ratified the convention and enacted a biodiversity law to give it effect.

China is a party that has ratified the convention.

Russia is also a party that has ratified the convention.

The convention, opened at the 1992 Rio Summit, has near-universal membership apart from this exception.

It aims at conservation, sustainable use and fair sharing of benefits from biological resources.