Climate change: Practice Questions

Human activities contribute to the enhanced greenhouse effect. Which of the following human activities directly leads to a significant increase in atmospheric methane ($$CH_4$$) levels?

Carbon dioxide ($$CO_2$$) is the most prominent anthropogenic greenhouse gas. Which of the following human activities is the largest source of $$CO_2$$ emissions globally?

Reaching effective international agreements to combat climate change, such as the Paris Agreement, often faces significant challenges. Which of the following is the most fundamental reason for the difficulty in achieving universally ambitious commitments?

Which of the following is considered a primary piece of evidence for global warming?

The natural greenhouse effect is a vital process for maintaining Earth's habitable temperature. Which of the following statements best describes the mechanism by which greenhouse gases maintain this thermal balance?

According to geographical definitions, how does climate differ from weather in terms of the time scale of atmospheric observations?

Identify two pieces of observational evidence, excluding direct temperature measurements, that provide strong indication of an irreversible trend in global climate change.

Using the conflict between individual interest and the common good, explain why many developing nations argue that developed countries should bear a larger share of the cost for global climate mitigation.

Identify and briefly explain two observed environmental changes, other than increasing global temperature, that serve as evidence of climate change.

Global climate change is characterized by various physical phenomena beyond simple temperature increases.
(a) Apart from rising mean global temperatures, describe two other pieces of physical evidence that prove the global climate is currently changing. (2 points)
(b) Explain how human activities, specifically in the sectors of agriculture and waste management, enhance the natural greenhouse effect. (3 points)