This film could've been one of the better stories ever told about Everest if they just stuck to the Sherpas vs pushing the climate change agenda. It feels extremely messy at times, and would've played out better if they had just showed the incredible journey and danger that is these people's lives. Sherpas have evolved to have better tolerances to high altitudes, stemming from their ancestors living in Nepal at an altitude of 8,000+ feet. There's no mention of that, and the focus instead is on "black carbon" or "changing weather patterns". 7/10 for me, good idea but the film can't decide if it wants to talk about the Sherpas or climate change. It's pretty clear in the film the Sherpas have no idea what the Western world views as a problem, and why should they? They travel on foot with yaks. Would imagine their carbon footprint is better than that of a 5 year old.