I think the complexity of understanding and coping with biospheric degradation leading to the destruction of human habitat exists only because a small segment of humanity controls our societies, and their control is threatened by their system of capitalism that delivers to them the powerfully addictive drugs of power and wealth. They refuse to see the "writing on the wall": their system which requires constant growth is reaching the finite limits of our planet. Hence, they refuse to seriously take measures to solve the crisis, keep postponing any significant actions, make promises they can't keep, and indulge in all kinds of fantasies. If this reminds you of an alcoholic, the comparison is very apt.
The only solution I see is a fundamental re-organization of our societies. This, of course, means that we must take away private ownership of our economies so that we, the people, can rationally cope with the crises we are now facing. However, this task of radical re-organization of societies is really complicated given that fact that these tiny ruling classes control all media and indoctrination agencies in addition to police-military agencies. Catastrophic climate destabilization is solvable, but only if we can solve the problem of a world-wide social-economic revolution. That is the real complexity.
After a few centuries of burning fossil fuels and the accumulation of vast amounts of climate science data, techno-capitalist carbon man is also being forced to react to the fact that the earth’s atmosphere is not an infinite pollution sink for his endless consumption of energy. The problem is that several planetary tipping points have already been irreversibly transgressed, threatening the very habitability of earth.
Our[The capitalist ruling class's] predictable collective response is to try to techno-fix the problem rather than entertain any fundamental rethink of the pillars of the capitalist economic system and the scientific reductionism that have led us to this impasse.