题目On November 15,2022,the United Nations(UN)reported that the number of people on Earth had grown to eight billion(8,000,000,000).That came just 11 years after the world reached seven billion people.The world faces challenges ahead as the population continues to g...
Video 21:51, 23-Apr-2022 Translate CGTN's Earth Day Forum: How to balance economic recovery and environmental protection?Share Error loading player: No playable sources found05:27 As we move gradually towards the COVID-19 pandemic recovery, how should we balance the economic d...
But this does raise an interesting question, though: over the long arc of human history, how many people have ever lived? The unique and powerful visualization above, from the team at Our World in Data, highlights how many humans have ever lived, and how much of humanity is currently alive...
Engineers initially used the term "carrying capacity" to describe how much cargo a ship could hold. In the 19th century, wildlife managers then used the term in herd management, before scientists later applied the concept to ecology to describe the maximum population of a species that a given ...
— Gareth Hughes (@gh230277)February 12, 2022 Although no one alive currently owns a trillion, we can look at examples who owe it. Now that's some serious credit card debt! Trillions of debt Much of the West has been economically blighted since the huge financial crash of 2008, and ind...
In March, I learned to grow vegetables and plant trees on our school farm.In April, I learned to repair things like electric fans and bicycles with the help of our teachers.In May, I learned to do much housework, such as making the bed, sweeping the floor and folding clothes. ...
Updated 19:31, 06-May-2022 CGTN Share Error loading player: No playable sources found01:02 China's Mars rover Zhurong is ready for winter weather on the Red Planet, Chinese scientists told China Media Group on Friday. During the Martian wintertime, night temperatures on...
On March 30 this year, Xi planted trees in China's capital Beijing, marking the 10th year of his participation in the annual tree-planting activity as the top leader and demonstrating how much he values efforts to further green China. ...
There can't possibly be more than ~64 million active wallets, since there are only ~64 million UTXOs With that said, one Bitcoin wallet can hold many UTXOs, so there is likely much less than ~64 million wallets in existence. How Many People Know About Bitcoin? About 90% of Americans ha...
There is too much e-waste on the earth. In the past ten years, 506. 5 Mt of e-waste has been produced. That is as heavy as about 50,149 Eiffel Towers. What can we do with e-waste?E-waste is harmful to the environment. Repeat the three words in our life: reduce, reuse and ...