-9.9 degrees, a major cooling in the southern hemisphere. South Africa hit a new high of 19 cities in 24 hours. Is it another extreme climate?

The earth is really amazing in 2021. The extreme climate phenomena can be said to be very obvious. You should have seen it some time ago. Extreme high temperatures in the northern hemisphere are very rare. Among them, high temperatures in North America have repeatedly Refresh, the surface temperature in Death Valley, California, USA has risen to 81 degrees. Although many people see such a climate it is unbelievable, especially in North America where "air conditioning" is lacking, this kind of temperature will never happen at all.

However, this temperature change does exist and is certain, so many people have died under the influence of high temperatures. At the same time, the temperature in the Arctic Circle has also shown a soaring pattern, "thunderstorm weather" " also comes online frequently. Scientists are constantly calling that the climate may really have "changed." However, the northern hemisphere has experienced such extreme high temperatures and severe rainfall problems, and the climate in the southern hemisphere has also changed.

The Northern Hemisphere has experienced extreme high temperatures, rainfall and other weather conditions. The Southern Hemisphere has also been hit by an extreme cold wave, which can be said to be very intense. According to a notice from the South African National Meteorological Service on the evening of July 23, local time, due to the impact of the extremely cold wave, the lowest temperatures in many places in South Africa broke historical records. What's going on? The earth is really a "world of ice and fire". One side is hot and the other side is cold. It is really too powerful.

The local weather bureau of South Africa also released data showing that 19 cities set new temperature records. Among them, the temperature in Johannesburg dropped to minus 7 degrees. The last record recorded on July 19, 1985 was minus 6.3 degrees. The temperature in Kimberley dropped to minus 9.9 degrees (-9.9 degrees) (in July 2000, it was minus 8.1 degrees). , becoming the lowest temperature in 21 years. Under the influence of strong cooling, some areas were also covered by large-scale snowfall.

So such extreme climate changes and large-scale attacks by cold air masses are really rare. However, meteorologists predict that the temperature will drop sharply and will return to normal soon. So this is considered a short-term extreme cold weather, so don’t worry. However, this climate change can show that extreme cold weather is quite rare. 19 cities have hit record lows in temperature. The earth’s climate may really be worse in the future. changed.

In 2019, "Nature" magazine published a study stating that scientists have warned that nine regions of our planet may have reached "tipping points," which would be a catastrophic event for mankind. The impact, and the report clearly points out, is that the sudden and irreversible threat of climate change is growing, including the Americas, Europe, Australia and other places, among which only Africa and Asia are slightly more stable.

The climate, including in the Arctic and Antarctic regions, may have reached a "critical point" state. For example, in the past century, the melting of Swiss glaciers has repeatedly reached new highs, and it is possible that by the end of this century, the loss of glaciers will Reaching 90%, more than 500 glaciers have now disappeared. Therefore, the temperature of the earth is getting higher and higher, and the changes on the earth are getting stronger and stronger.

Let’s look at the extreme nature of South Africa. The great cooling is obviously just a type of earth’s climate change, and it is also an extreme weather. Under global warming, we may see More extreme high temperatures and extreme cold. People often use one sentence to describe the future changes of our earth, that is, "when it's hot, it gets hotter, and when it's cold, it gets colder." This is extreme climate change, so the root cause is still caused by "global warming."

Today, the climate of our earth is likely to have changed drastically. Although "Nature" magazine stated that there are 9 regions where climate tipping points may have appeared, it also shows that the evolution of climate has become increasingly severe. As things get more complicated, what humans are seeing now may be just the "tip of the iceberg." Therefore, we must speed up the control of climate change so that we can see these extreme climates slowly "retreat." This is the general situation.

The earth's climate is indeed becoming more and more extreme, and it is bringing more and more disasters to mankind, so mankind should really "wake up". If you are still saying that the earth's climate has not changed, global change will Warming has no effect, etc., then once the climate "breaks through" the critical point, the world will encounter extreme weather patterns, so the possibility of us trying to change the climate is very low.

Therefore, in response to climate change, we should reduce greenhouse gas emissions, plant trees, etc. Only with a global "united effort" can we change everything. In May 2021, the earth's carbon dioxide concentration reached 419ppm, once again setting a rare new high. This shows that human beings have not yet produced results in changing the climate, and emissions are still rising. Therefore, if we want to change the climate, this must be done. Just fine.

Although humans are now advocating immigration to Mars, it is difficult to achieve in a short time, and it may take hundreds of years to transform Mars before it can be inhabited. Therefore, when talking about immigration to Mars today, it is more practical to protect the earth. , only if the earth is well protected, will Mars have greater hope of becoming mankind's "second earth".