INDIGENOUS PEOPLES AND CLIMATE CHANGE

I would like to ask why indigenous people around the world have been impoverished, mistreated, persecuted and killed. How does that affect the vibration of the earth? Do indigenous peoples store information in their DNA essential for the ascension of humanity? I know that they have a very important role in terms of the conservation of biodiversity and in many of the international dialogues (COP for climate for example) on climate change they themselves embrace the idea of climate change. Is this an achievement for the power in the shadows, that the indigenous people use that narrative? I believe that their voices are gaining more and more support in international dialogues.