Welcome High Temperature "Roasting" Again in Multiple Regions around the World
Since July, the feeling of the weather is probably just one word: hot!
Indeed, since the beginning of summer, multiple countries and regions in the northern hemisphere have been swept by heatwaves multiple times, with temperatures reaching new highs. Scientists have warned that 2023 may be the hottest year on record, and the Earth was once so hot about 120000 years ago. Today's global temperature is in the 'unknown realm'.
Starting from July 10th, affected by a new round of heatwaves, southern European countries such as Italy, Spain, and Greece once again experienced high temperatures, with some areas even reaching the highest temperature of 45 degrees Celsius.
Affected by continuous high temperatures, droughts, and strong winds, wildfires have spread in some coastal areas of Croatia, and some villages have even been razed to the ground.
The Italian Meteorological Society even named this heat wave "Saberas", the three headed monster guarding Darvaza gas crater in Dante's "Hell".
Maslin, professor of geoscience at University College London, UK: We are bringing the earth into a new era that ecology, plants, animals and ourselves cannot cope with.
News report: Canada's wildfire season this year is the worst on record. As the peak fire season continues, the situation will only worsen.
Currently, the wildfires in Canada are still ongoing. The latest data shows that there are still at least 500 wildfires in various parts of Canada that have not been extinguished, of which 75 are in a "runaway state".
Frannigen, Thompson Rivers University, Canada: I began to study mountain fires in the 1970s. I have never seen a mountain fire like this year before, which is very extreme, with an area of nearly 9 million hectares burned.
The thick smoke generated by the wildfire continued southward, invading large areas of the eastern United States.
According to the New York Post, the air quality in New York City has dropped to the worst level in 40 years, worse than that after the September 11 terrorist attacks.
At the same time, multiple states across the United States have also issued high temperature and fire warnings. Meteorologist Taylor from the National Weather Service pointed out that temperatures in cities across the United States have approached or reached historical highs. More than 100 million people in the United States are under extreme heat warning.
Weber, an energy professor at the University of Texas in the United States, said that the heat wave and high temperature we are suffering from are pushing up the demand for electricity for air conditioners and other equipment, which may become the New normal.
According to the expectations of Texas power grid operators, the demand for electricity in Texas will significantly increase under extreme high temperatures, breaking the record set last year.
Under severe heat and drought, an ancient church in southern Mexico that was once submerged in a reservoir is completely exposed to the water.
According to information released by the Mexican Ministry of Health, from March 19th to June 24th, at least 112 people in the country have died from high temperatures.
Due to the continuous high temperature and drought, a large number of fish died in the rivers of Maysan Governorate Province, Iraq.
Mohammed, Director of the Environment Department of Maysan Governorate Province, Iraq: Due to the decline of water level and the lack of water release in the whole area, the fish and other organisms in the river are crowded together, resulting in the oxygen content in the water reduced to 0.5.
In India, a heatwave caused tomato harvests to fail, causing prices to skyrocket, even surpassing gasoline prices.
For many people, this extreme high temperature may still be a "dead door". Since July 8, torrential rains and landslides have caused more than 100 deaths in northern North India. Just last month, the extreme high temperatures in the region caused nearly 170 deaths.
Why is it so hot this summer? The scientific explanation is that the "hot dome" phenomenon may be one of the driving forces behind the scenes.
Simply put, the thermal dome phenomenon refers to the continuous high pressure locking heat over a certain area, forming a stable "Ω" shaped circulation. The air temperature inside the dome is getting hotter and hotter, while the "Ω" shaped circulation prevents the entry of external cold air, turning it into a huge "pressure cooker" and giving birth to a super heatwave.
In 2021 and 2022, multiple countries in the northern hemisphere experienced the phenomenon of "hot domes", with high temperatures repeatedly breaking records. It can be said that in recent years, the frequency of "hot domes" has been increasing.
Of note is the strong return of the "El Ni ñ o" phenomenon after seven years.
On July 3rd, the World Meteorological Organization officially announced that comprehensive results from ocean and atmospheric observations showed that for the first time in seven years, the conditions for the formation of an El Ni ñ o phenomenon in the tropical Pacific region may trigger global temperature surges, as well as destructive weather and climate patterns.
Scientists have warned that the true power of El Ni ñ o has not yet been fully demonstrated.
World Climate Research Project Leader Sparrow: The impact of El Ni ñ o will be even greater later this year. Although the El Ni ñ o phenomenon has not yet truly begun, we have now seen phenomena such as high temperatures. So it can be expected that the El Ni ñ o phenomenon will bring higher temperatures in the second half of the year, such as October and November this year.
Analysis has pointed out that the effects of "hot domes" and "El Ni ñ o" on extreme weather are at best "fueling the fire", with record breaking extreme high temperatures repeatedly occurring, and global warming and climate change being the fundamental reasons.
On April 21st, the World Meteorological Organization released its annual climate report, stating that global temperatures in 2022 were 1.15 ℃ higher than before industrialization from 1850 to 1900, making the past 8 years the hottest on record.
The Copernicus Atmosphere Monitoring Service pointed out that in June this year, the global ocean surface temperature was higher than the data in any June since records were kept, and Ireland, Britain and the surrounding areas of the Baltic Sea all experienced "extreme ocean heat waves".
World Climate Research Project Leader Sparrow: We cannot forget that the ocean absorbs approximately 90% of the heat from the greenhouse effect caused by humans. If the ocean warms significantly, it will have a chain reaction on the atmosphere and global sea ice.
Scientists have warned that the extreme weather caused by the current high temperatures and heatwaves is a "life and death judgment" for humans and ecosystems.