The old man is 93 years old. He really deserves the evaluation that he has traveled to all corners of the world. He said that he does not want to be involved in this topic of protecting the earth, but if he does not, based on his experience and understanding of this issue understand that he will regret it. The film gives three data of 1937, 1954, 1960, 1978, 1997, and 2020. The world population has exploded from 2.3 billion to 7.8 billion, and the content of carbon dioxide in the atmosphere has increased from 280ppm to 415ppm today. Forest vegetation coverage dropped from 66% to 35%. The earth has experienced 5 mass extinctions, and each mass extinction will destroy more than 60% of the living things. Many people only remember the extinction of dinosaurs. In fact, 70% of them went extinct at the same time as dinosaurs. Dinosaurs are only one of the more famous ones. As a kind of creature with high intelligence, human beings have been separated from the restricted development trajectory of other creatures. No one hunts us. We transform nature according to our own requirements, move mountains and reclaim the sea, all to meet our own needs. . Earth's temperature has remained flat for the past 100,000 years, and it remained flat until 1990, when a lot of carbon dioxide was absorbed by the oceans. After that, the oceans are saturated, temperatures rise, corals die and bleach, and in the long run, entire ecosystems collapse. Humans have drastically changed the stable temperature of the earth in 200 years. We are in a Holocene era, and human beings are dominant in this era. Humans are the only animals that can imagine the future. According to the current progress, the earth will no longer be suitable for human existence by 2100. Yes, you read that right, it’s just not suitable for human survival. There is no problem with the earth. The earth is much colder and hotter than it is now. Earth is our only home. To protect the earth is to protect human beings. The most important thing is to protect the diversity of life on the earth. Human beings are the ultimate beneficiaries. Eliminating poverty in backward areas, improving women's education, economic growth and living standards will naturally lead to a decline in fertility rates and a stable population, and a population peak will come. Reduce meat intake and produce more healthy food with less land. The Netherlands, a land-constrained country, is the world's second-largest food exporter with the help of modern technology. Set at least one-third of the fishing period in the ocean to allow marine life to thrive. Stop deforestation and restore vegetation as much as possible. In just 25 years, Costa Rica has re-vegetated half of the country. More use of renewable resources, so that human survival and nature coexist, rather than against nature. We have always been a part of nature, only occasionally forget this, we will become part of nature eventually.
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