How great are the annual steel industry's global CO2 emissions compared to total annual anthropogenic CO2 emissions?

Question

BlackTom AI · Accepted Answer

First, restating the question and options: The question asks how large the annual steel industry's global CO2 emissions are in relation to total annual anthropogenic CO2 emissions. The answer options are:
- a. 0,6 %
- b. 10 %
- c. 6 %
- d. 1 %

Now, evaluating each option:
Option a: 0,6 %. This would imply the steel sector contributes less than 1% of total anthropogenic CO2. While some sectors may be small relative to the whole, current estimates generally place the steel industry around a few percent, not well under 1%, making this figure too low in most analyses.
Option b: 10 %. If the steel sector accounted for about one-tenth of all anthropogenic CO2, that would indicate an unusually large share relative to many emissions sectors (energy, cement, transport, etc.). While steel is energy-intensive, 10% is higher than common global estimates for steel’s share, which are typically cited nearer the mid-single digits.
Option c: 6 %. This value sits squarely in the commonly cited range for steel’s share of global anthropogenic CO2 emissions. The steel industry is energy- and process-intensive, and global assessments often report roughly around a few percent; 6% aligns with several mainstream estimates that include emissions from both blast furnaces and electricity consumption in steel production.
Option d: 1 %. Stating 1% would treat steel as one of the very smallest contributors to CO2 emissions, which contradicts the widely acknowledged high energy intensity of steelmaking and its substantial emissions footprint when aggregated globally. Most comprehensive inventories place steel well above this level.

To determine plausibility, consider the overall global emissions from all sectors and where heavy industry fits in: energy production and heavy industry (including steel) are among the largest contributors, with steel often identified as a significant but not dominant portion—roughly in the mid-single digits. Relative plausibility checks favor option c over the others when aligning with common global inventories and sector analyses.

In summary, each alternative presents a distinct claim about steel’s share. The 0,6% and 1% figures appear too low given steel’s energy intensity and global footprint; 10% seems high compared to typical sector shares; 6% is consistent with many standard estimates of steel’s contribution to total anthropogenic CO2 emissions. This reasoning supports the notion that the 6% figure is the best match among the provided options.

How great are the annual steel industry's global CO2 emissions compared to total annual anthropogenic CO2 emissions?

查看解析

登录即可查看完整答案

类似问题

What has increased the concentration of Carbon Dioxide (CO2) in the atmosphere?

Which of the following activities is responsible for the largest percentage of human-made carbon dioxide emissions?

How much extra CO2 does travel by celebrity jet produce compared to the average American?

According to figure F13-3-5, what are the predicted CO2 emissions in 2050 if the 2 °C emission reduction targets are achieved?

Which energy source currently contributes the most CO2?

Apple’s iPhone XR was the most popular smartphone in the world in 2019. In 2019, 46.3 million iPhone XR units were shipped. How many kg CO2 is released over the lifetime of these 46.3 million iPhone XR units if an iPhone XR is responsible for 62 kg CO2 emission over its lifetime?

Based on the changes of these parameters, what do you think has happened to CO2 emissions?

When looking at the distribution of produced total CO2 emissions in the world it can be concluded that

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单