Examine the trend of global carbon dioxide emissions from 1850 to 2009. What do you observe about the changes in carbon dioxide emissions during this period, particularly after 1950? How might these trends impact the carbon cycle?

Question

 

(1 point)
Responses

Carbon dioxide emissions decreased steadily after 1950, helping balance the carbon cycle.
Carbon dioxide emissions decreased steadily after 1950, helping balance the carbon cycle.

Carbon dioxide emissions remained stable between 1850 and 1950, then began to decrease rapidly.
Carbon dioxide emissions remained stable between 1850 and 1950, then began to decrease rapidly.

 Carbon dioxide emissions increased slightly after 1950 but stabilized after the year 2000.
 Carbon dioxide emissions increased slightly after 1950 but stabilized after the year 2000.

Carbon dioxide emissions increased sharply after 1950, likely disrupting the natural carbon cycle.
Carbon dioxide emissions increased sharply after 1950, likely disrupting the natural carbon cycle.
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Answer 1

The correct observation regarding carbon dioxide emissions from 1850 to 2009 is:

Carbon dioxide emissions increased sharply after 1950, likely disrupting the natural carbon cycle.

From the mid-20th century onward, carbon dioxide emissions grew significantly due to industrialization, increased fossil fuel consumption, and population growth, leading to substantial disruptions to the natural carbon cycle. This rise in emissions has contributed to global warming and climate change, as the carbon dioxide released into the atmosphere exceeds the Earth’s natural capacity to absorb it. The increased concentration of CO2 in the atmosphere alters the balance of carbon exchange between the atmosphere, oceans, and terrestrial ecosystems, contributing to a cascade of environmental impacts.