It is alleged that in 2022, the global fleet of electric vehicles was over 26 million, an increase of 60 per cent over the year 2021.

The International Energy Agency (IEA) forecasts that the global distribution of electric vehicles for 2023 is expected to reach nearly 14 million vehicles and that penetration rates can reach nearly 20 per cent. According to the latest projections of IEA, this explosive growth means that the share of electric vehicles in the entire automotive market has risen from about 4 per cent in 2020 to 14 per cent in 2022, and is expected to increase further to 18 per cent this year.

According to the report, China is a “computer” in the distribution of electric vehicles, and in 2022 it held 60 per cent of global sales of new energy vehicles. More than half of the motor vehicles on the global road are now in China.

The second global market, with the exception of China, is Europe, with an increase of more than 15 per cent per year in the distribution of electric vehicles in 2022, with more than one in five vehicles sold. In addition, United States motor vehicle sales increased by 55 per cent in 2022, while other parts of the world showed “indications of hope”.

Based on previous reports, CIA data show that in 2022, our automobile sales were completed by 2702.1 million vehicles and 26.266.4 million vehicles, respectively, representing an increase of 3.4 per cent and 2.1 per cent, respectively; of these, new energy vehicle sales were completed by 705.8 million and 688.7 million, respectively, at a rate of 9.9 per cent and 93.4 per cent, respectively, and market occupancy was 25.6 per cent.

Self-defence

According to the requirements of the circular, before entering the centralized supervision warehouse, the storage, processing, operation and sales of imported frozen livestock and poultry meat and aquatic products should report and make an appointment through the “Hunan cold chain” platform, fill in the relevant information of imported cold chain food, and upload the traceability information to the “Hunan cold chain” platform.

If the nucleic acid test of imported cold chain food sampled by the centralized supervision warehouse is negative, the owner shall be notified to pick up the goods by telephone or SMS, and the owner shall pick up the goods within the time limit specified in the notice. Delivery must be “delivered in and out of the warehouse in a whole batch”, and multiple batches of delivery cannot be separated.

Centralized monitoring warehouse for imported cold chain food samples nucleic acid test positive, the first time reported Changsha New Coronavirus pneumonia prevention command headquarters, and in accordance with the contingency plan work process to carry out emergency response.

Operators of imported cold chain food should note that from the date of the announcement, imported frozen livestock, poultry, meat and aquatic products that have been in the warehouse can be produced and sold if they can provide the inspection and quarantine certificate of imported goods, the disinfection certificate of professional institutions and the qualification certificate of nucleic acid test. If they cannot provide the above three certificates, they must enter the centralized supervision warehouse for inspection, killing and sampling nucleic acid test.

For the goods entering the centralized supervision warehouse, the costs related to killing, nucleic acid detection, transportation and storage shall be borne by the owner. At the same time, the consignor is encouraged to insure the imported cold chain food entering the centralized supervision warehouse, and the insurance company shall compensate the imported cold chain food confiscated and destroyed due to the positive nucleic acid test according to law.

Changsha market supervision department reminded the public to enhance self-awareness, take the initiative to check the source code of “Hunan cold chain” before consumption, and strengthen personal protection in the process of processing and production.

Building a vegetable garden in space is not easy - but for astronauts, growing crops is not just a talent, but almost a requirement.

On the international space station, the history of plant cultivation is short but interesting. With the gradual transition of astronauts to a long-term life independent of the earth, it is more necessary for them to have the ability to meet their nutritional needs in orbit.

“Today’s small-scale projects on the space station focus on primary research related to crop growth and performance. These projects will become a springboard for the development of fully functional and operational crop production systems that will accompany astronauts in the future,” NASA said in an email statement

However, current efforts to produce space crops on a large scale face many challenges, including high costs, logistics difficulties and technology gaps. In order to overcome some of these obstacles, it is necessary to make new progress in the fields of automation, robotics and even machine learning.

Prepackaged food will deteriorate over time, and it may take too long to send any material from earth to potential lunar or Martian settlements, so it is more feasible to invest human and material resources to keep the crew healthy in real time.

Simon Gilroy, a botany professor at the University of Wisconsin Madison, said: “it’s too expensive and difficult to provide food, oxygen and everything we need to survive.”

Gilroy was not involved in the study. He believes that space is a “magical” place for biological survival, which is one of the reasons why space provides a great opportunity to study the evolutionary records of plants and humans.

But to some extent, NASA’s strong interest in astrobotany, which studies how plants interact with the space environment, also stems from lessons learned from the history of piracy. Centuries ago, when adventurous explorers sailed at sea, many people died of scurvy, a severe lack of vitamin C.

This important vitamin is an important nutrient that can keep human beings healthy. Citrus fruits are rich in vitamin C. Although astronauts can take vitamins every day without painstakingly planting hard won lettuce, plants not only bring nutritional benefits, but also greatly benefit mental health.

The article published in the frontier of astronomy and space science also pointed out that by using hyperspectral imaging technology, a technology that can capture and process a large amount of information from various bands of the electromagnetic spectrum, scientists can develop an accurate plant health monitoring system. The system can collect data and ensure food safety by automatically monitoring plant health and alerting astronauts to early plant diseases, droughts or microbial infections.

A prototype of the system is under development at the John F. Kennedy Space Center. It was also used to create a database of plant images for astronauts to refer to when determining plant stimuli.

NASA hopes that these and similar systems will be used in the future to help train AI algorithms that can be used on the international space station and the portal space station. The portal space station is part of NASA’s Artemis moon landing program and will be an outpost for flying around the moon. But NASA said: “more needs to be done before we can be sure that our astronauts sent to Mars will have a healthy and functional food system to accompany them through their journey.”

Together with the U.S. Department of agriculture, NASA is still studying how to use micro seedlings. Miniature vegetable seedlings are small plants rich in nutrition, which can be easily cultivated and eaten without too much energy from the crew. A large number of space crop research projects are also under way, including the “vegetable production system”. This is a vegetable garden on the international space station. Astronauts use it to study the effects of microgravity on plants.

Another research project is called “advanced plant culture environment”. This is a fully automatic growth system, which is used to harvest crops and conduct real-time research on crops. As a result of these and similar projects, NASA has become a pioneer in space crop research and solutions.

A recent example is the “Ohalo 3” system. This is a prototype of crop production equipment. The equipment will serve as a platform for testing new plant cultivation technologies and can test advanced water supply concepts. The equipment will also allow astronauts to pick and eat a variety of “salad crops”.

Still, it will take time for large-scale crop cultivation in space to become a reality, Gilroy said. However, the space crop project in the next few decades will lay the foundation for the smooth development of future generations.

Researchers at the John F. Kennedy Space Center’s vegetable processing facility. (NASA website)