- Option (A): The Cartagena protocol is related to biosafety and not directly to climate change or global warming, so this is incorrect.
- Option (B): The Copenhagen summit held in 2001 was a major international conference on climate change where the Kyoto Protocol was further discussed, making this related to climate change. Hence, (B) is correct.
- Option (C): The Nagoya protocol is related to the Convention on Biological Diversity (CBD) and biodiversity, not directly to climate change or global warming, so this is incorrect.
- Option (D): The Paris Agreement (2016) is a binding international treaty aimed at limiting global warming, making this related to climate change and global warming. Hence, (D) is correct.
Thus, the correct answers are (B) and (D).