Carbon dioxide levels in the atmosphere are now at the highest level they’ve been since the Pilocene Era, 3 million years ago, when giant camels roamed arid land above the Arctic Circle. According to a new National Oceanic and Atmospheric Administration (NOAA) report, in 2018, the global average carbon dioxide amount reached a record high of 407.4 parts per million (ppm). NOAA points a finger directly at humans, noting that the atmospheric carbon dioxide has increased about 100 times faster annually over the past 60 years than from previous natural increases.