What does climate change mean?

Climate change refers to the statistically significant change of climate mean and climate deviation.

The United Nations Framework Convention on Climate Change defines "climate change" as "climate change caused by human activities directly or indirectly changing the composition of the global atmosphere after a long period of observation." This distinguishes "climate change" that changes the atmospheric composition due to human activities from "climate variability" attributed to natural causes.

According to scientific research, changes in solar radiation, changes in the Earth's orbit, volcanic activity and changes in the atmosphere and ocean circulation are natural factors that cause global climate change. However, human activities, especially those since the industrial revolution, are the main causes of climate change characterized by global warming, including greenhouse gas emissions such as carbon dioxide caused by human production and life, land use and urbanization.

Several impacts of climate change:

1, climate change will lead to changes in the natural environment. Rising global temperatures will lead to melting glaciers and rising sea levels, which will have a great impact on coastal cities and island countries. At the same time, climate change will also lead to an increase in extreme weather events, such as floods, droughts and hurricanes, which will bring challenges to human survival and development.

2. Climate change will have a significant impact on the ecosystem. Climate change will destroy the ecological balance, leading to species extinction and biodiversity reduction. This poses a threat to the stability and sustainability of the ecosystem and will also affect the survival and development of mankind.

Climate change will also have a negative impact on agricultural production. Climate change will affect the growth cycle and yield of crops, leading to food shortage and price increase. This will bring challenges to global food safety and sustainable development.

Climate change will also have an impact on human health. Climate change may lead to air pollution, water pollution and other problems, increasing the risk of human illness. At the same time, extreme weather events will also pose a threat to human life and property.

Climate change will have a far-reaching impact on global economic and social development. Climate change will lead to problems such as resource shortage and ecological refugees, which will bring challenges to global economic and social development. At the same time, dealing with climate change also needs to invest a lot of resources and funds, which will have a certain impact on the development of the global economy.