Yes, Virginia and T(h)ink, the problem with all these conflicting theories is that religious and less religious principles and rules - and neither the great organisations fighting for human, life and environmental causes - can find a sustainable solution, as in all the cases, there are fanatic, often abusive, extreme groups or individuals who are distorting, sponsoring or buying actions and campaigns (or frauding), and well thought programmes to improve and safeguard sustainable issues are often degenerating, failing or abandoned due to interfering interests, lacking support, crimes, disasters and other emergencies.
The real problem is indeed the incompatibility of certain mentalities, beliefs, cultures, identities, philosophies and "traditions", and, of course, strategies, interests and power.
And human overpopulation - with the resulting industries, mass cultures, breeding and productions, "standards", overconsumption and overwasting (especially plastics, hazardous and toxic residues), is polluting, intoxicating and depleting important natural sites and resources, biodiversity, health and society.
The aggravating elements are too big ambitions, neglect, cheating, greed, perversity, megalomania, hate, crimes and corruption.
But if evoking "climate change" and various theories (we can't deny changes, but they seem to forget about the fast depletion of the environment and the plundering of vital resources), and we should rather look into concrete damages and evidence, and try to restore as much as possible what can be saved:
Pollution: https://en.wikipedia.org/wiki/Air_pollution
http://ocean.nationalgeographic.com/ocean/explore/pristine-seas/critical-issues-marine-pollution/
https://en.wikipedia.org/wiki/Soil_contamination
Toxic waste: https://en.wikipedia.org/wiki/Toxic_waste
Deforestation: https://en.wikipedia.org/wiki/Deforestation
Depletion of ecosystems: http://study.com/academy/lesson/resource-depletion-its-negative-effects-on-ecosystems.html
Soil erosion: https://en.wikipedia.org/wiki/Soil_erosion
Desertification: https://en.wikipedia.org/wiki/Desertification
etc., etc.
T(h)ink and Virginia: there are indeed priorities and emergencies, which are hidden behind certain campaigns.
But there are also great little people who are showing the example: