Humans account for only a small amount of Earth’s biomass but have demolished more


Scientists have discovered an interesting fact about the Earth’s biomass. As per the new study about biomass census of the Earth which was published in PNAS (Proceedings of the National Academy of Sciences), the Earth has around 550 gigatons of carbon (GT C) which is generated by different sources. The majority of carbon is produced by plants.

In the study, scientists have divided the life form of a plant in different categories like the kingdom level, fine-toothed level, and viruses. The kingdom level includes archaea, animals, fungus and more. Livestock and marine creatures are listed under the fine-toothed category.

Around 80 percent of carbon (450 GT C) is stored by plants. On the other hand, bacteria account for 13 percent (70 GT C) and fungus account for 2 percent of carbon (12 GTC). Interestingly, all humans comprise one ten-thousandth (1/10,000th) of the Earth biomass. Humans are only 0.06 GTC, which is less than ringworms.  They comprise 0.01 percent of carbon weight.

Stating more about this, James Hanken, Harvard evolutionary biologist informed that the truth is that the biomass of fungi exceeds that of all animals’ sort of puts us in our place. If compared with the population of other creatures, human’s population is very low but humans have greatly affected its fellow creatures. Since the starting of civilization on Earth, Humans have diluted the total strength of plants by half and weight of wild animals by around 85 percent.

The reason behind why the scientists have chosen to study the carbon mass is autonomous water content and many kinds of literature in the past had been done on this. The scientist collected carbon biomass sample from a different location and environment to get an accurate result. They spend three years to evaluate the results.

In the study, scientists have mentioned that the weight of domestic animals have gone up by 1 to 14 percent that means around 83 percent of wild animals have been destroyed by humans. While the weight of wild birds is going down, domestic chickens are now on the top of the list as they are triple the weight of these birds. Apart from that, increasing human civilization has destroyed 80 percent of marine creatures, 50 percent of plants and 15 percent of fish. The primary objective was not to determine the weight of life on the Earth, it was to bring out the fact about the Earth’s most abundant protein.

However, as the researchers have been trying to solve the question about Earth’s carbon mass, it is still a little difficult to know how much impact humans have on the Earth’s environment. The study has offered a clear view of human’s position on the Earth. Humans make up a small portion of earth’s life but destroying other animals in huge.


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