Why is it getting hotter and hotter?

The rapid population growth in recent years is one of the main factors leading to global warming. At the same time, it also seriously threatens the balance between the natural ecological environment. Such a large population only emits its own carbon dioxide every year.

This will be an amazing number, and the result will directly lead to the continuous increase of carbon dioxide content in the atmosphere. The carbon dioxide "greenhouse effect" thus formed will directly affect the climate change on the earth's surface.

2. Atmospheric environmental pollution factors

At present, the increasingly serious environmental pollution has become a major global problem, and it is also one of the main factors leading to global warming. Now, the research on global climate change has clearly pointed out that the temperature of the earth's surface has started to rise since the end of last century.

3. Deteriorating factors of marine ecological environment

At present, the change of sea level is on the rise. According to the prediction of relevant experts, the sea level may rise by 50 cm by the middle of the next century. If no measures are taken, it will directly lead to the destruction and pollution of fresh water resources and other adverse consequences. In addition, a large number of toxic substances are produced in land activities.

chemistry

Waste and solid waste are continuously discharged into the sea; Major oil spills in seawater and the destruction of coastal ecological environment by human activities are the main factors leading to the destruction of seawater ecological environment.

4. Destructive factors such as land erosion, salinization and desertification.

The main cause of soil erosion and desertification is improper agricultural production. As we all know, good vegetation can prevent soil erosion. But so far, human activities, such as obtaining wood,

Excessive deforestation, land reclamation for agricultural production and overgrazing are still seriously damaging vegetation. At present, on average, 20 hectares of forests are destroyed, 65,438+00 hectares of land are desertified and 47,000 tons of soil are eroded every minute in the world. Soil erosion reduces soil fertility and water retention, thus reducing soil biological productivity and its ability to maintain productivity; It may also lead to large-scale floods and sandstorms, causing huge economic losses to society and deteriorating the ecological environment.