Why is it so cold in Beijing this year?

It’s because of rising temperatures from the Arctic. The cold weather in Beijing this year is because the temperature from the Arctic rises. The polar vortex over the Arctic originally plays a role in locking the cold air. However, once the temperature in the Arctic rises and sea ice decreases, the polar vortex will weaken and the cold air will It will then move south, causing cold weather in northern my country, including Beijing.