It’s hot! July is the hottest month on record on earth

When wildfires erupt everywhere, when glaciers continue to collapse, when floods are raging like beasts, when the global ocean is hit by heat waves, when a person pretending to be asleep is awakened, just turn off the air conditioner… We have also experienced the greatest Hot month.

According to new data released by the National Oceanic and Atmospheric Administration (NOAA) , in July 2021, the global land and ocean temperature is 0.01 degrees Celsius higher than the previous record, and 0.93 degrees Celsius higher than the 20th century average temperature of 15.8 degrees Celsius. In July It became the hottest month in 142 years.

▲ Picture from: Angelos Tzortzinis/AFP

But this new record is not a good thing.

The hottest month has caused "high fever" everywhere in the world

In the hottest month that just passed, many places in the world broke high temperature records .

▲ Temperature changes around the world. Picture from: NOAA

The northern hemisphere gave birth to a new highest surface temperature; Asia ushered in the hottest July on record; Europe also hit the second hottest July in history, and the temperature in Sicily, Italy even reached 48.8 degrees Celsius.

In addition, North America experienced the sixth hottest July in history. Litton, British Columbia, Canada reached 46.6 degrees Celsius, the highest temperature in the region; South America, Africa, and Oceania also entered the hottest month in July this year. Ten.

▲ Picture from: Unsplash

Behind the new record is that these areas are inevitably hit by high temperatures.

Widespread heat waves have occurred in the western United States, Eastern Europe, and Asia. Extreme high temperatures have caused roads to be bent and power cables melted. The number of emergency departments in the Pacific Northwest has surged, and high-temperature-related diseases have caused hundreds of deaths.

Picture from: Jeff McIntosh/Associated Press

Under the heat wave, climate change is intensified.

Continuous floods, heat waves, droughts, hurricanes, wildfires and other extreme weather disasters have burst out in all corners of the world.

When the news of the hottest month was announced, Northern California was facing multiple wildfires.

This year, California’s largest wildfire "Dixie" burned down 1,980 square kilometers of land here. More than 1,000 buildings were destroyed and 14,000 houses were threatened by the fire. Within two hours, the small town of Greenville was reduced to ruins .

▲The Dixie Mountain Fire. Picture from: JOSH EDELSON/AFP

There are more than 80 fires burning in 13 U.S. states. The once-in-a-thousand-year-old "hot dome" burns the United States and Canada. It is like a cover covering the ground so that the heat wave cannot dissipate. The temperature in some areas is even As high as 50 degrees Celsius, there have been at least 578 accidental deaths .

▲ Picture from: Unsplash

At this time, in South America in the southern hemisphere, the Andes, which should have ushered in the peak of snowfall , fell into a drought and water shortage .

The water level of the Paraná River, the second largest river in South America, has dropped to its lowest level in 77 years. Local residents and agricultural production have begun to face a water shortage crisis. The local ski industry has also suffered a severe economic blow due to lack of snow.

▲ Andes. Image from: Shutterstock

In Germany, Belgium and Henan of China, they were all swept by super torrential rains and floods.

A series of rare and continuous heavy rains have caused urban waterlogging and mountain torrent geological disasters, resulting in the destruction of infrastructure and human suffering in many places. Severe floods in western Germany have killed 189 people ; the devastating floods in Henan have killed 302 people and 50 people are missing .

In addition, on the map of major climate anomalies released by NOAA, the number of storms in global tropical cyclone activity this year is also higher than in previous years.

▲ Some of the most important climate events that occurred in the world in July 2021, picture from: NOAA

Although the global average temperature rise of 0.93 degrees does not seem surprising, in fact, a small increase in temperature will bring great destructive power.

The New York Times reported that when a temperature rise of 2°C, global sea levels will rise by a few meters; when a temperature rise of 3°C, Arctic forests and most coastal cities will cease to exist; when a temperature rise of 4°C, Europe will be permanently dry and China Most areas of India and Bangladesh will be buried in deserts; when the temperature rises to 5°C, some climate scientists warn that this should be the end of human civilization.

▲ Picture from: Fastcompany

Too much alarmism can actually make people numb to the climate crisis, and then forget the urgency and necessity of protecting the environment.

But in reality, high temperature records have repeatedly broken through, real disasters happen frequently, and you can even feel the obvious long-lasting high temperature around you——

At this time, the alarm of climate change has already sounded.

Mankind is the main killer of the climate crisis

It seems that every year, we hear the news of the "hottest month setting record", and even now we can hear it several times a year.

In fact, this is not surprising. According to statistics from the World Meteorological Organization, of the hottest 10 years since human records, 7 years have occurred in the past 10 years.

However, people are often skeptical about climate warming-is this caused by man, or is it just a natural evolution?

▲ Picture from: David McNew/Getty Images

It is difficult to clarify this issue in a few words, but in August this year, the new climate change report issued by the United Nations Intergovernmental Panel on Climate Change (IPCC) confirmed that –

About 95%-100% of climate warming is caused by human activities, and about 0-5% is caused by natural factors.

IPCC is considered to be the leading authority in climate science. This report is based on about 14,000 new studies and was jointly written and released by more than 230 experts from 66 countries. The report points out that human emissions of greenhouse gases such as carbon dioxide and methane are the cause of the climate crisis. The culprit.

However, human beings are far from effective in addressing climate change.

The rate of global warming is faster than imagined. Even with a substantial reduction in greenhouse gas emissions, the world may temporarily heat up by 1.5 degrees Celsius in the next 20 years .

▲ Picture from: Unsplash

Once a certain threshold is exceeded, the crisis will become more difficult to control.

Nobel Laureate in Economics, Nordhaus also mentioned in the book "Climate Casino" that once global temperature warming exceeds a certain critical point, everything in science fiction movies may become reality.

The impact of climate change has long been changing the earth in ways unprecedented in hundreds of thousands of years.

Since the 1950s, with the exception of the polar regions, there has been an increase in extreme high temperature events in almost every place in the world; the frequency of extreme heat waves is now five times as high as that of the time; the drought that only occurred once every 10 years was compared to It used to be 70% frequent; what is considered to be a "one in a hundred years" flood may now happen every year…

No one is safe, and the situation is getting worse.

▲ Picture from: Unsplash

The IPCC stated that these extreme climate disasters will have five next trends:

  • Global extreme events will become more extreme;
  • The frequency of extreme events will be more frequent;
  • Disasters are more likely to happen one after another, and different types of disasters happen at the same time;
  • Extreme weather events will occur in many unexpected places;
  • The timing of extreme weather events will be unpredictable.

Climate warming is getting more and more intense under the hands of mankind, and it has to get back on track in the hands of mankind.

The only way is to reduce greenhouse gas emissions immediately, quickly and on a large scale.

Avoid the climate crisis as the "new normal"

Regarding how to curb the climate crisis in the future, we have actually made many important plans and actions.

▲ "Paris Agreement". Picture from: Reuters/Suzanne Vera

Since 2016, the "Paris Agreement" signed by 178 parties around the world has been implemented. This 20-year agreement has been negotiated by various countries. The main goal is to control the global average temperature increase in this century within 2 degrees Celsius and strive to increase the temperature. The amplitude is limited to 1.5 degrees Celsius.

In other words, 1.5 degrees Celsius is the "safe limit" for global warming.

Whether it is from the country, industry, or individual, advancing the development of the green economy, accelerating the energy transition, raising environmental awareness and taking action are all effective and require continuous efforts to protect the environment.

▲ Picture from: Unsplash

However , the two points raised by the IPCC are worth noting-

One is that by 2100, the temperature increase will be between 1.5 degrees Celsius and 5.7 degrees Celsius, and greenhouse gas emissions will reach zero, which determines the degree of global warming. In order to achieve the goals of the Paris Agreement, significant reductions will be required in the next few decades. Row;

Second, the implementation of policies in many countries is not satisfactory, which has formed a practical obstacle to the process of achieving goals. There are some unpredictable factors, such as the degree of world cooperation, investment in fossil fuels, and so on.

Bill Gates also proposed an optimized carbon neutral plan in "Climate Economy and the Future of Mankind", the key concept of which is "green premium".

"Green premium" refers to the additional cost we have to pay for using green and clean energy, and we can supplement and reduce the premium through scientific and technological innovation and government policy planning and support, and ultimately achieve global zero net carbon emissions by 2050 The goal.

This needs to be reflected in all aspects of power generation, production, agriculture, transportation and logistics, and daily life.

For example, we have to use less fossil fuels (one can provide new fuels through innovation, and the other is to increase the cost of fossil fuels, and include the damage caused by fossil fuels in the sales price). We also need to change the way we produce goods and grow new food. Ways, changing the way we travel, ways to keep our buildings warm or cool, etc.

▲ Picture from: Unsplash

Unlike other extreme environmental protection concepts, Bill Gates's ideas are more pragmatic.

He does not believe that environmental protection requires sacrificing the quality of life, but in order to pursue a higher quality of life in the future, we should develop cutting-edge technologies and expand emerging markets.
This cannot be accomplished overnight. ​Bill Gates also said that solving the problem of climate change will be "the greatest miracle that mankind has ever done", but this "miracle" can still be achieved.

However, it is worth noting that the time for implementation is very tight. ​United Nations Secretary-General Guterres believes :

The next 10 years will be the last chance to save the planet from climate disasters, pollution and species destruction.

▲ Picture from: Unsplash

During this period, and for a longer period of time, people all over the world will continue to spend new "earth hottest months" one after another, struggling.

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