Every year after the arrival of summer, the northern hemisphere region will be very hot, but this year's Summer in the United States is particularly hot, in June 2021, the United States has a century-old extreme heat, the heat wave is rolling, a hot, the Weather in the United States is in a hurry.
Do you know how hot it is? Put the eggs on the manhole cover of the main road, you can eat it after an hour, the asphalt road is sunburned, the car leaves a deep wheel mark after driving, the safety risk, even the high temperature resistant tram cables are heated, and the tram has to strike.
The hottest period has not yet arrived, we still have to wait about a month, but in Boston, Massachusetts, the United States, June 28 set the highest temperature of the day since the beginning of the record in 1872 36 degrees Celsius, this is only the same period of the day high temperature, not the highest temperature of the entire summer, in previous years Boston summer maximum temperature of 40 degrees Celsius, this summer is only afraid of too much.
On June 27, Boston officially declared a heat emergency and opened all of the city's cooling centers, acting Mayor Kim Jenny issued a statement: The weather is about to get very hot, asking everyone to take steps to ensure safety and help each other in the next few days.
To be honest, 36 degrees Celsius heat is really nothing, in Spokane, Washington, the United States, June 29 at 5 p.m. there was a high temperature of 42.2 degrees Celsius, in fact, this is not the highest temperature, June 27, Oregon Salem appeared 47 degrees Celsius high temperature, the highest temperature ever, the high temperature resistant tram cable was heated, there was a big hole, tram strike.
On June 29, the heat of more than 40 degrees Celsius also occurred in the western state of Washington, which led to the sunning of many asphalt roads, such as Interstate 544 near Iverson, Wazhou, which has cracked, leaving deep wheel marks after cars drive past, and driving has become unsafe.
On June 25, the weather in southern California reached a very painful point, there was a high temperature of 46 degrees Celsius, which is the highest temperature ever, some people who have not yet installed air conditioners are ready to buy air conditioners, found that the store air conditioners have been sold out, in order to cool down, some people hold ice all day.
Due to the sharp increase in electricity consumption in many states in the United States, this is also a severe test for the US power grid and power facilities, and some places automatically cut off power due to excessive traffic, although the US National Grid administrator said: Although it is now facing a large-scale heat wave sweeping the country, the power system is working well, but it is hoped that consumers will voluntarily reduce the use of energy.
Not only the United States, but also Canada, which borders the United States, has also experienced extreme heat, such as the town of Lytton in British Columbia, which experienced a temperature of 47 °C on June 29, which is the hottest temperature ever recorded in Canada, and from June 26 to June 29, more than 65 people in British Columbia have died suddenly, most likely by heat.
On June 20, when the ESA satellite crossed the arctic Siberia, it recorded a high temperature of 48 degrees Celsius, 10 degrees Celsius higher than the 38 degrees Celsius high temperature in 2020, although this record value is not necessarily accurate, but it still shows that the Arctic summer temperature has become very high, setting new records many times.
The extreme heat of summer, not only for us humans and other animals has a huge impact, but also trigger a variety of natural disasters, first, mountain fires, every summer is the high incidence of mountain fires, this time of year the United States will frequently appear mountain fires, this year is no exception, the United States has appeared in June more serious wildfires, this is just the beginning.
Second, tropical cyclones (typhoons), under long-term extreme high temperatures, seawater will attract a lot of heat and thus become very warm, airflow activity will become very active, so that it is easier to form tropical cyclones, tropical cyclones will naturally increase in frequency, wind strength will also increase, which is why typhoons have been increasing in recent years.
Third, the global glaciers are melting at an accelerated pace, the collapse of permafrost is accelerated, and every summer, whether it is Antarctica or Greenland in the Arctic, multiple glaciers will appear glacial lakes, which indicates that warm weather is melting glaciers, and more worrying is the collapse of permafrost, because tens of thousands of Siberians are living on permafrost.
46 degrees Celsius, 47 degrees Celsius, 48 degrees Celsius, the weather in the United States is in an emergency, in fact, it can also be said that the global weather is in an emergency, and we just think that this is a normal phenomenon, where is the summer not hot? But in fact, it is inseparable from our excessive greenhouse gas emissions, how do we do it, I believe I don't need to teach you again, right? Interesting and informative scientific content, please pay attention to the only WeChat public account: Interesting Exploration