Very one-sided "science"-- in the first 25 minutes of the first episode they have four pro-vegan presentations, but nowhere do they discuss the carbon-intensive problem of SHIPPING vegetarian foods to climates where you can't grow anything for 6 months of the year... like anywhere north of California. They mention that hunter-gatherers didn't milk the animals they killed. But they don't mention that hunter-gatherers weren't vegetarian. They also don't mention that more work has been done to address climate change and reverse desertification WITH FARM ANIMALS (Savory Institute) than has been done by any vegans or pro-vegan organizations. Yes, we should eat less meat. But only in tropical climates can you buy LOCAL vegan food year-round.