A New Cold War in Climate Emergency Times?

I have long believed that a silver lining to the very ominous cloud of global overheating is that, hopefully, the nations of the world would unite to turn things around and, in doing so, lay the basis for grassroots and governmental global cooperation on many other urgent issues leading to the kind of system change needed. To some extent this has begun to happen through the annual United Nations climate conferences and the adoption of agreements that are too weak, but are of some value, to jointly take action to shift away from fossil fuels.