Some experts warned thatRecord-breaking extreme weather has become the new normal on Earth.Looking around the world, many regions are experiencing extreme heat. For example, at least 18 cities in Italy have entered a "high temperature red alert" state. The heat wave has caused at least 5 deaths, while heat-related emergency cases have increased by 10%, and hospitals are overwhelmed.
While the northern hemisphere is experiencing a high temperature and heat wave, South America has experienced a rare severe cold due to polar high pressure. Argentina, Chile, Uruguay and other countries have experienced record low temperatures.The minimum temperature dropped to minus 18 degrees Celsius in some areas.
Experts believe that extreme weather occurs frequently around the world, and global warming is one of the main reasons. In the context of global warming, extreme anomalies become more intense, last longer, and have more significant impacts, which have a great impact on the environment, economy, and society.
Human activities have led to a continuous increase in greenhouse gases such as carbon dioxide and methane in the atmosphere, and the enhanced greenhouse effect has caused global temperatures to soar. Data shows that over the past 100 years, global temperatures have increased by about 1.2 degrees Celsius, and the concentration of carbon dioxide in the atmosphere has increased by more than 50%.
The impact of global warming affects the whole body. In addition to causing adjustments in atmospheric circulation, it also intensifies the water vapor cycle and increases the amount of saturated water vapor in the air, resulting in greater energy being stored in the atmosphere. When strong convective weather occurs, more severe thunderstorms and winds will be produced, triggering extreme precipitation events such as heavy rains and snowstorms.
The international community needs to work together to significantly reduce greenhouse gas emissions and jointly build a sustainable and resilient future.
