GEOLOGY

Detailed explanation-1: -The concentration of carbon dioxide in Earth’s atmosphere is currently at nearly 412 parts per million (ppm) and rising.

Detailed explanation-2: -An increase in the carbon dioxide content in the atmosphere would cause more heat to be retained by the atmosphere and lead to global warming.

Detailed explanation-3: -During the day or in spring and summer, plants take up more carbon dioxide through photosynthesis than they release through respiration [1], and so concentrations of carbon dioxide in the air decrease.

Detailed explanation-4: -Carbon dioxide in the atmosphere warms the planet, causing climate change. Human activities have raised the atmosphere’s carbon dioxide content by 50% in less than 200 years.

Detailed explanation-5: -The current global average concentration of CO2 in the atmosphere is 421 ppm as of May 2022. This is an increase of 50% since the start of the Industrial Revolution, up from 280 ppm during the 10, 000 years prior to the mid-18th century. The increase is due to human activity.