Question

When companies discuss sustainability, why is the focus on carbon dioxide (CO2)?

a. It is more difficult to measure carbon in the solid form than the gaseous form.

b. It is the only gas that is causing climate change and impacting sustainability.

c. It is easier to completely eliminate CO2 than to develop sustainable technology.

d. It is a greenhouse gas that is easily detectable and stays in the atmosphere for centuries.

Answer 1

When companies discuss sustainability, why is the focus on carbon dioxide CO2 because "It is a greenhouse gas that is easily detectable and stays in the atmosphere for centuries​".

• According to the United Nations (UN) World Commission on Environment and Development, environmental sustainability means acting in a way that ensures that our future generations have the natural resources they need to live a life that is equal to or better than present generations.

• So during their discussions about this topic, the greenhouse problem comes to light.

• The main greenhouse gas emitted by human activity is carbon dioxide(CO2).

• The greenhouse effect is generally caused by a gaseous molecule like carbon dioxide that absorbs and emits radiant energy in the thermal infrared spectrum.
• The sun heats up the earth's atmosphere during the day. Heat is then radiated back into the atmosphere as the earth cools down at night. The heat is absorbed continuously by the greenhouse gases in the earth's atmosphere throughout this process.

• This phenomenon is what keeps the earth's surface warm, and this itself allows living things to survive on the planet.

• However these days, the earth's temperature has increased significantly as a result of greater amounts of greenhouse gases. This has had a number of bad consequences.

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Answer 2

Answer:

It is a greenhouse gas that is easily detectable and stays in the atmosphere for centuries.

Explanation:

• Typically, when businesses talk about sustainability, they emphasize carbon dioxide This is because "It is a greenhouse gas that is easily observable and remains in the atmosphere for generations."
• The United Nations (UN) World Commission on Environment and Development defines environmental sustainability as behavior that ensures that future generations have access to the natural resources they need to lead lives that are at least as good as those of the present.
• The greenhouse issue so becomes apparent when they talk about this. Carbon dioxide is the main greenhouse gas produced by human activities.

Thus the correct answer is option D.

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