what is highest carbon dioxide recorded
This past April, carbon dioxide levels rose to above 400 ppm (parts per million). This did not only happen once in that month; in fact, every day had a CO2 level of at least 400 ppm, with levels averaging for the entire month at 401.33 ppm.With this month, carbon dioxide levels have now reached as higher than they have in recorded history, which dates back 800,000 years.wo of the main nutrients affected by higher levels of carbon dioxide are zinc and iron, nutrients for which about 2 billion people on Earth are already deficient (that comes out to almost 30% of the global population).