Based on the above graph, the concentration of Carbon Dioxide in our atmosphere began to increase exponentially around 1860.

Today, CO2 is at the highest concentration is has ever been. What do scientists attribute this exponential increase around the 1860s to?

(1 point)
Responses

Combustion of fossil fuels by humans
Combustion of fossil fuels by humans

Deforestation by humans
Deforestation by humans

Increased agriculture and farm animal reproduction
Increased agriculture and farm animal reproduction

Glaciers melting and causing ocean acidification

(1 point) Responses

The correct answer is: Combustion of fossil fuels by humans