The main criterion that distinguishes climate change from weather change is

Climate change and weather change both involve changes in the atmospheric system, but there are fundamental differences between them. Climate change is a change in long-term, global weather patterns, while weather change is a short-term, local climate phenomenon. This article will focus on the differences between the main criteria of climate change and weather change.

First, the time scales of climate change and weather change are different. Climate change usually refers to long-term changes ranging from decades to centuries, often caused by large-scale changes in the climate system. Weather changes are short-term climate phenomena such as hours, days, and weeks, which are usually caused by changes in local atmospheric systems. For example, if the winter temperature in a certain area continues to drop for decades, this is a manifestation of climate change; and if the rainfall suddenly increases on a certain day, this is a manifestation of weather change.

Secondly, the spatial scales of climate change and weather change are also different. Climate change is typically global, involving changes in the entire Earth's climate system. For example, rising global temperatures and rising sea levels are all manifestations of climate change. Weather changes are local and usually only involve climate phenomena in a certain area. For example, the temperature and rainfall in a certain city are all manifestations of weather changes.

Third, climate change and weather change have different impacts. The impact of climate change is global, involving the global ecosystem, human health and other aspects. For example, rising sea levels and an increase in extreme weather events caused by rising global temperatures will have a major impact on the human living environment. The impact of weather changes is mainly local, usually only involving the ecosystem, human health and other aspects of a certain area.

Finally, the causes of climate change and weather change are also different. Climate change is usually caused by a combination of natural factors and human activities. For example, natural factors such as solar radiation and ocean circulation, and human activities such as human emissions of greenhouse gases, all affect climate change. Weather changes are usually caused by changes in the atmospheric system. For example, high pressure, low pressure, cold fronts, warm fronts, etc. can all cause weather changes.

In summary, the main criteria for climate change and weather change are differences in time scale, spatial scale, impact degree and cause. Understanding these differences helps us better understand the relationship between climate change and weather changes, and their impact on the human living environment.