Climate The main link between water and production and construction

The ways in which human activities affect climate change mainly include fossil energy burning activities, fossil energy extraction activities, industrial production, agriculture and animal husbandry, waste disposal, land cover and land use (such as the increase in greenhouse gas concentrations in the atmosphere caused by deforestation). Among them, the main process is the use of fossil fuels to increase the concentration of greenhouse gases in the atmosphere such as CO2, and the greenhouse effect will be enhanced and affect the climate, which is the main driving force of climate warming caused by human activities; Greenhouse gases such as CH4, CO2, N2O, PFC, HFC, and SF6 emitted by agriculture, animal husbandry, and industrial production also enhance climate warming through the greenhouse effect after entering the atmosphere. Climate change is further influenced by changes in greenhouse gas sinks and surface albedo due to land-use change, including deforestation, urbanization, and vegetation change and destruction.

In addition, aerosols emitted from environmental pollution, especially sulfides and black carbon aerosols, can also cause climate change. Their main role is to make the ground cold. In fact, the most important aerosol emitted by humans is also the burning of fossil fuels.

Water mainly enters the atmosphere through the evaporation of seawater, and is transported to the continent by the air flow, and reaches the surface of the land in the form of precipitation, forming a variety of diverse and colorful water vapor phenomena.

Precipitation and temperature are the causes of various climate zones and climate zones on the earth, and what people call climate change at present mainly refers to the changes in temperature and precipitation over a long period of time. The intensity and duration of precipitation have a decisive impact on production and life, and are also the main reasons for favorable weather or drought and flood disasters.

Weather, climate and water cycling are conducive to the development of production under normal conditions. However, over the course of thousands of years, there have been many abnormal phenomena that have been difficult for people to adapt to, and this is called a disaster.

Waterlogging is when precipitation exceeds the upper limit of agricultural production, drought is below the lower limit of water demand, heat injury is the upper limit of temperature above production capacity, and cold injury is the lower limit of crops that are unbearable.

Therefore, the history of several thousand years is not only the history of people's exploitation and utilization of weather, climate and water resources, but also the history of people's struggle against droughts, floods, cold and heat disasters. Legends and stories such as Xia Yu's control of the water and the nine days of Yi shooting are literary expressions of people's memories and imagination of ancient disasters.

The weather, climate and water on the beautiful earth are all extremely precious resources in the universe, and in a sense, disasters reflect the value of this resource from the opposite side, telling people how to recognize and cherish this gift from nature to human beings.