Present day carbon dioxide levels in the atmosphere are higher now than any time in the last 800 000 years.

Question

Quizplus · Accepted Answer

This statement is true. According to ice core data, carbon dioxide levels in the atmosphere have not exceeded 300 parts per million (ppm) in the past 800,000 years until the 20th century. As of 2021, carbon dioxide levels have reached approximately 416 ppm, which is largely attributed to human activities such as burning fossil fuels.

Present Day Carbon Dioxide Levels in the Atmosphere Are Higher