As long as the wealthy, and myopic wealth seekers, with all their corporate, media, military, and political power control the increasingly overpopulated world, we homo sapiens are indeed on a doomed path. To change that path will be very difficult for a list of nearly impossible to change reasons.
The human world has emerged from local regional entities into a long list of independent nations. Each nation with different languages, religions, morals, cultures, history, goals, and economic situations. Because of that, the United Nations was formed however that organization has no way to effectively globally enforce differences. Weapons of mass destruction and their increasing proliferation is now a constant threat to not only humanity but also what 4 billion years of organic DNA Earth life has evolved. A nuclear war contaminating much the planet with long half-life radioactive debris could set back our world, hundreds of millions of years.
IMO it is possible our world is actually a zoo for a race of ultimate intelligent entities that prefer not to interfere and if so they may at some point step in, not for the sake of we humans but for the rest of Earth life, either totally eliminating us or selectively filtering out all those with behaviors dooming us. I very much believe it is within many of us to live in a sustainable, peaceful, content, fulfilling way in harmony with the rest of the life on our rare blue water planet that among the vast universe of astronomical stars and worlds would be considered a heaven for organic entities.
