The amount of carbon dioxide in the atmosphere just hit its highest level in 800,000 years and scientists predict deadly consequences

For the first time in recorded history, the average monthly level of CO2 in the atmosphere exceeded 410 parts per million in April, according to observations at the Mauna Loa Observatory in Hawaii.

…Research indicates that if unchecked, increased CO2 levels could lead to tens of thousands of pollution-related deaths, reach a point at which it slows human cognition, and contribute to rising sea levels, searing heat waves, and superstorms that scientists project as effects of climate change.

Source: Carbon dioxide in atmosphere exceeds 410 ppm, threatens human health – Business Insider