Listen to this mini-lecture about the low carbon economy.Questions 13-14. Fill in the gaps with ONE OR TWO WORDS from the mini-lecture. 13. Answer Question 11[input] is the most urgent reason to create a low-carbon economy.

Question

BlackTom AI · Accepted Answer

Climate change is the most urgent reason to create a low‑carbon economy.

Relevant knowledge points and concepts:
- Burning fossil fuels releases carbon dioxide and other greenhouse gases, enhancing the greenhouse effect and driving global warming (climate change).
- A low‑carbon economy aims to reduce carbon emissions through renewable energy, energy efficiency, low‑emission transport, and changes in industry and consumption.
- Urgency comes from the rate of change, the risk of crossing climate “tipping points,” and the long atmospheric lifetime of CO2, meaning delays make mitigation harder and more costly.

Step‑by‑step reasoning:
1. Identify the problem: Human activities (primarily fossil fuel combustion) increase atmospheric CO2, causing global temperatures to rise.
2. Recognize impacts: Rising temperatures lead to more frequent and severe heatwaves, storms, sea‑level rise, and ecosystem disruption—threats to lives, infrastructure, food and water security.
3. Connect to policy: Mitigation requires large, sustained reductions in carbon emissions; transitioning to a low‑carbon economy is the systemic way to achieve these reductions.
4. Establish urgency: Because emissions accumulate and some impacts are irreversible, immediate action is necessary to limit warming and avoid the worst consequences; this temporal imperative makes climate change the foremost justification for rapid decarbonization.

Why the correct answer is correct:
“Climate change” directly names the global, urgent threat that a low‑carbon economy seeks to address. It captures both the cause (excess carbon emissions) and the consequence that motivates the transition.

Why other possible answers are incorrect:
- “Air pollution” is important for health but is more localized and does not capture the global, long‑term warming problem.
- “Energy security” or “economic reasons” are significant co‑benefits but lack the existential, planetary urgency of climate change.
- “Resource depletion” is related but not as immediate in motivating rapid global emission cuts.

Conclusion: The best one‑ or two‑word fill is “climate change,” which matches the provided answer.

Listen to this mini-lecture about the low carbon economy.Questions 13-14. Fill in the gaps with ONE OR TWO WORDS from the mini-lecture. 13. Answer Question 11[input] is the most urgent reason to create a low-carbon economy.简答题

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