How many time zones are in China

There should be 5 because of China's range of longitude.

But on the orders of the central government, the whole country is on Beijing time, so it's all one time zone.

Of course, that means that in far Western China, the sun sometimes rises at 1:00 in the morning and it sets at 2:00 in the afternoon. But that really doesn't upset the government officials 1,000 miles away in Beijing. And you get used to it.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.