What are the effects of increased carbon dioxide concentration?
[Natural greenhouse effect]
Greenhouse gases such as carbon dioxide in the atmosphere can radiate longer-wavelength long-wave radiation to the ground after strongly absorbing the ground long-wave radiation, which plays a role in insulating the ground.
[Enhanced greenhouse effect]
Since the Industrial Revolution, human activities have emitted a large amount of carbon dioxide and other greenhouse gases, which has caused the concentration of greenhouse gases in the atmosphere to rise sharply, resulting in an increasing greenhouse effect. According to statistics, before industrialization, the global average annual atmospheric carbon dioxide concentration was 278 ppm (1 ppm is one part per million). In 2012, the global average annual atmospheric carbon dioxide concentration was 393.1 ppm. By April 2014, the monthly average carbon dioxide concentration in the atmosphere of the northern hemisphere It exceeded 400ppm for the first time.
【Global warming】
The continuous intensification of atmospheric greenhouse effect has led to global warming, resulting in a series of global climate problems that are unpredictable by science today. According to the International Climate Change Economics Report, if human beings continue to maintain their current lifestyles, by 2100, there is a 50% chance that the global average temperature will rise by 4°C. If the global temperature rises by 4℃, the glaciers in the north and south poles of the earth will melt, and the sea level will rise as a result. More than 40 island countries and the most populous coastal cities in the world will face the danger of submergence, and tens of millions of people worldwide His life will face a crisis, and even a global ecological balance disorder will eventually lead to large-scale migration and conflicts around the world.
