Earth approaches ecological tipping point
A recent report from Nature magazine said that the latest article in the magazine said that as humans consume resources in an unsustainable pace, as humans consume resources in an unsustainable manner, the planet may be approaching the critical point of ecology Sex, food production and water supply will be threatened.
Anthony Barnosky, a professor of comprehensive biology at the University of California, Berkeley, said that about 43% of the surface ’s 7 billion inhabitants are based on agriculture, and as the ratio approaches 50%, There will likely be irreversible major environmental changes.
Barnoski said: "Unless we are paying attention to how we are changing the world and what it means in a biological sense, we cannot control the development of the situation." Without changes in policies and behaviors, the global environment will be affected.
The per capita consumption of human resources is about 0.91 hectares, and the population is expected to exceed 9 billion by 2045. And Barnoski pointed out that by 2025, half of all land may be in use, including Antarctica, Greenland, and other areas that are generally uninhabitable.
Small ecosystems have shown that once a region changes by 50%, biodiversity is often lost and animals and plants are also at risk of extinction.
The article points out that there is an "urgent need" to reduce population growth and per capita resource consumption, grow more food on less land, and replace fossil fuels with renewable energy.
As one of the leading members of this study, Barnoski spent 18 months working with 21 other scientists from the United States, Canada, Chile, Finland and Spain. He said: "This is a global society and these are also global problems. The only way we can solve these problems is through global cooperation. The next 50 years, the biggest winners in the world will be those who have Form energy. "
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