Earth's CO2 levels highest in over 3 million years, US scientists say

The Covid-19 pandemic did nothing to slow the root cause of global warming. In fact, the level of carbon dioxide in the Earth's atmosphere is now higher than it has been in at least 3.6 million years, US scientists announced Wednesday. – File photo: AP

The Covid-19 pandemic did nothing to slow the root cause of global warming.

In fact, the level of carbon dioxide in the Earth's atmosphere is now higher than it has been in at least 3.6 million years, US scientists announced Wednesday.