HSC Economics Practice Exam

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Question: 1 / 400

What effect does an increase in greenhouse gas emissions generally have on global temperatures?

It decreases temperatures

It has no effect on temperatures

It increases global temperatures

An increase in greenhouse gas emissions typically results in the warming of the Earth's atmosphere, leading to an increase in global temperatures. This effect is primarily due to the greenhouse gases, such as carbon dioxide and methane, trapping heat from the sun within the atmosphere. This phenomenon is known as the greenhouse effect.

As greenhouse gas concentrations rise, more heat is retained, leading to a gradual increase in global average temperatures, which can contribute to climate change. This warming manifests in various ways, including rising sea levels, altered weather patterns, and increased frequency of extreme weather events. Therefore, the relationship between greenhouse gas emissions and global temperatures is well-established in climate science, and the general consensus is that higher emissions lead to higher temperatures.

HSC Economics Practice Exam

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