This year is called one of the warmest years in history. What kind of natural phenomenon is reflected behind this?

This year will be one of the hottest years on record, and extreme weather will aggravate the epidemic. In 2020, the ocean heat is at a record level, and more than 80% of the world's oceans have experienced ocean heat waves at some time, which has a wide impact on marine ecosystems suffering from more acidic waters due to the absorption of carbon dioxide.

The report shows that high-impact events such as extreme high temperature, wildfire and flood, as well as the record Atlantic hurricane season, have affected millions of people and aggravated the threat of COVID-19 epidemic to human health, safety and economic stability. Although countries have taken blockade measures against the COVID-19 epidemic, the concentration of greenhouse gases in the atmosphere continues to rise. Given that carbon dioxide stays in the atmosphere for a long time, the earth will be further warmed in the next few generations.

The natural weather in China is influenced by La Nina phenomenon. Therefore, although there will be more rainfall and snowfall in the winter of 2020, the overall weather will not be particularly cold. In addition, in the first month of 202 1, it will be cold occasionally for a few days, and it will be relatively warm at other times. Because the warming is obvious now, if there is no accident, the possibility of warming in winter is greater.

Record warm years usually coincide with strong El Nino phenomena, such as 20 16. We are now experiencing La Nina phenomenon, which has a cooling effect on the global temperature, but it is not enough to curb this year's high temperature. Despite the current La Nina conditions, there has been a high temperature close to the historical record this year, which is equivalent to the previous record of 20 16. Unfortunately, 2020 is another unusual year for the climate. We have seen new extreme temperatures on land, in the ocean and even in the Arctic. Wildfires have devoured large areas of Australia, Siberia, the west coast of the United States and South America, and smoke columns have spread all over the world. We saw a record number of hurricanes in the Atlantic Ocean, including an unprecedented category 4 hurricane in Central America in June 5438+065438+ 10. Floods in parts of Africa and Southeast Asia have caused a large number of people to be displaced and millions of people are in food insecurity.