In the very recent geologic history, the atmospheric carbon dioxide concentration has climbed to over 390 parts per million and continues to increase, causing the phenomenon of global warming which is mostly attributed to human carbon dioxide emissions.
The atmospheric carbon dioxide concentration has climbed to over 390 parts per million. This was in the very recent geologic history. The atmospheric carbon dioxide concentration continues to increase, causing the phenomenon of global warming. This is in the very recent geologic history. This phenomenon of global warming is mostly attributed to human carbon dioxide emissions.