From about 14,000 to 12,000 years ago, when CO2 hovered around a “safe” ~240 ppm, Siberian Arctic July temperatures reached ~8 to 12°C, which is at least 4°C warmer than today (Andreev et al., 2008). Grass grew 300-350 days a year in the late stages of the last glacial in the Siberian Arctic. This allowed … Continue reading Horses Grazed On Grass Year-Round In A Birch-Forested Siberian Arctic Until 2200 Years Ago