CLEAN : Blue skies in China's capital spark joy scepticism

The video discusses the reduction of PM 2.5 concentration in Beijing and surrounding areas, noting a significant decrease since 2016. Nationally, the reduction is slower, marking the slowest decline in five years. Weather played a crucial role in reducing pollution, contributing to a 30% reduction in December, with actual figures reaching 40% in Beijing. Measures such as converting from coal to gas for heating and restructuring energy sources have also contributed to pollution control. These efforts, while effective, may increase production costs, prompting factories to relocate.

What was the percentage reduction in PM 2.5 concentration in Beijing and surrounding areas since 2016?

• 10%

• 15%

• 25%

• 20%

How much did the PM 2.5 concentration reduce nationally year on year?

• 8%

• 6%

• 4%

• 2%

What percentage of PM 2.5 reduction in December was attributed to weather conditions?

• 40%

• 10%

• 20%

• 30%

Which measure contributed to the long-term reduction of PM 2.5 levels?

• Increasing coal usage

• Switching from coal to gas for heating

• Reducing gas usage

• Increasing industrial production

What is a potential economic impact of the measures taken to reduce PM 2.5 levels?

• Increase in coal usage

• Decrease in gas prices

• Factories relocating to other areas

• Decrease in factory production costs