Question

Carbon dioxide enters the atmosphere by natural processes and from human activity. Why is the latter a cause of concern?

Short answer

A${\mathrm{CO}}_2$is a greenhouse gas that contributes to global warming. Global warming is a critical problem in the modern era because of the catastrophic repercussions that result from rising global average temperatures.

Step-by-step solution

Atmosphere

The gases that surround a star or planetary body are held in place by gravity and are referred to as the atmosphere. If gravity is high and the temperature of the atmosphere is low, a body is more likely to keep an atmosphere over time.

Explanation

As,${\mathrm{CO}}_2$is a greenhouse gas, which means it absorbs and emits radial energy within the thermal infrared range, generating the greenhouse effect. Increased carbon dioxide generation due to human activity is a cause for concern. Carbon emissions are produced by a variety of human activities, including the combustion of fossil fuels and deforestation. The annual${\mathrm{CO}}_2$emissions caused by human activity have increased from$5$billion to over$35$billion tonnes in the last century, and the average global temperature has climbed by$1°\mathrm{C}$.

Global warming induced by greenhouse gas emissions has a profound impact on the biosphere, resulting in severe storms, floods, heat waves, and wildfires, among other things. The implications are severe: limited access to drinking water, wildlife extinction, air pollution, rising sea levels, and more acidic oceans.

Therefore, it contributes to global warming which leads to rise in temperatures.