Misc
All the Biomass of Earth, in One Graphic
All the Biomass of Earth, in One Graphic
Our planet supports approximately 8.7 million species, of which over a quarter live in water.
But humans can have a hard time comprehending numbers this big, so it can be difficult to really appreciate the breadth of this incredible diversity of life on Earth.
In order to fully grasp this scale, we draw from research by Bar-On et al. to break down the total composition of the living world, in terms of its biomass, and where we fit into this picture.
Why Carbon?
A “carbon-based life form” might sound like something out of science fiction, but that’s what we and all other living things are.
Carbon is used in complex molecules and compounds—making it an essential part of our biology. That’s why biomass, or the mass of organisms, is typically measured in terms of carbon makeup.
In our visualization, one cube represents 1 million metric tons of carbon, and every thousand of these cubes is equal to 1 Gigaton (Gt C).
Here’s how the numbers stack up in terms of biomass of life on Earth:
Taxon | Mass (Gt C) | % of total |
---|---|---|
Plants | 450 | 82.4% |
Bacteria | 70 | 12.8% |
Fungi | 12 | 2.2% |
Archaea | 7 | 1.3% |
Protists | 4 | 0.70% |
Animals | 2.589 | 0.47% |
Viruses | 0.2 | 0.04% |
Total | 545.8 | 100.0% |
Plants make up the overwhelming majority of biomass on Earth. There are 320,000 species of plants, and their vital photosynthetic processes keep entire ecosystems from falling apart.
Fungi is the third most abundant type of life—and although 148,000 species of fungi have been identified by scientists, it’s estimated there may be millions more.
Animals: A Drop in the Biomass Ocean
Although animals make up only 0.47% of all biomass, there are many sub-categories within them that are worth exploring further.
Taxon | Mass (Gt C) | % of Animal Biomass |
---|---|---|
Arthropods (Marine) | 1.0 | 38.6% |
Fish | 0.7 | 27.0% |
Arthropods (Terrestrial) | 0.2 | 7.7% |
Annelids | 0.2 | 7.7% |
Mollusks | 0.2 | 7.7% |
Livestock | 0.1 | 3.9% |
Cnidarians | 0.1 | 3.9% |
Humans | 0.06 | 2.3% |
Nematodes | 0.02 | 0.8% |
Wild mammals | 0.007 | 0.3% |
Wild birds | 0.002 | 0.1% |
Animals (Total) | 2.589 | 100.0% |
Arthropods
Arthropods are the largest group of invertebrates, and include up to 10 million species across insects, arachnids, and crustaceans.
Chordates
The category of chordates includes wild mammals, wild birds, livestock, humans, and fish. Across 65,000 living species in total, nearly half are bony fish like piranhas, salmon, or seahorses.
Surprisingly, humans contribute a relatively small mass compared to the rest of the Animal Kingdom. People make up only 0.01% of all the biomass on the planet.
Annelids, Mollusks, Cnidarians, and Nematodes
Annelids are segmented worms like earthworms or leeches, with over 22,000 living species on this planet. After arthropods, mollusks are the second-largest group of invertebrates with over 85,000 living species. Of these, 80% are snails and slugs.
Cnidarians are a taxon of aquatic invertebrates covering 11,000 species across various marine environments. These include jellyfish, sea anemone, and even corals.
Nematodes are commonly referred to as roundworms. These sturdy critters have successfully adapted to virtually every kind of ecosystem, from polar regions to oceanic trenches. They’ve even survived traveling into space and back.
The Microscopic Rest
Beyond these animals, plants, and fungi, there are an estimated trillion species of microbes invisible to the naked eye—and we’ve probably only discovered 0.001% of them so far.
Bacteria
Bacteria were one of the first life forms to appear on Earth, and classified as prokaryotes (nucleus-less). Today, they’re the second-largest composition of biomass behind plants. Perhaps this is because these organisms can be found living literally everywhere—from your gut to deep in the Earth’s crust.
Researchers at the University of Georgia estimate that there are 5 nonillion bacteria on the planet—that’s a five with 30 zeros after it.
Protists and Archaea
Protists are mostly unicellular, but are more complex than bacteria as they contain a nucleus. They’re also essential components of the food chain.
Archaea are single-celled microorganisms that are similar to bacteria but differ in compositions. They thrive in extreme environments too, from high temperatures above 100°C (212°F) in geysers to extremely saline, acidic, or alkaline conditions.
Viruses
Viruses are the most fascinating category of biomass. They have been described as “organisms at the edge of life,” as they are not technically living things. They’re much smaller than bacteria—however, as the COVID-19 pandemic has shown, their microscopic effects cannot be understated.
The Earth’s Biomass, Under Threat
Human activities are having an ongoing impact on Earth’s biomass.
For example, we’ve lost significant forest cover in the past decades, to make room for agricultural land use and livestock production. One result of this is that biodiversity in virtually every region is on the decline.
Will we be able to reverse this trajectory and preserve the diversity of all the biomass on Earth, before it’s too late?
Editor’s note: This visualization was inspired by the work of Javier Zarracina for Vox from a few years ago. Our aim with the above piece was to recognize that while great communication needs no reinvention, it can be enhanced and reimagined to increase editorial impact and help spread knowledge to an even greater share of the population.
Misc
The Top 25 Nationalities of U.S. Immigrants
Mexico is the largest source of immigrants to the U.S., with almost 11 million immigrants.
The Top 25 Nationalities of U.S. Immigrants
This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.
The United States is home to more than 46 million immigrants, constituting approximately 14% of its total population.
This graphic displays the top 25 countries of origin for U.S. immigrants, based on 2022 estimates. The data is sourced from the Migration Policy Institute (MPI), which analyzed information from the U.S. Census Bureau’s 2022 American Community Survey.
In this context, “immigrants” refer to individuals residing in the United States who were not U.S. citizens at birth.
Mexico Emerges as a Leading Source of Immigration
Mexico stands out as the largest contributor to U.S. immigration due to its geographical proximity and historical ties.
Various economic factors, including wage disparities and employment opportunities, motivate many Mexicans to seek better prospects north of the border.
Country | Region | # of Immigrants |
---|---|---|
🇲🇽 Mexico | Latin America & Caribbean | 10,678,502 |
🇮🇳 India | Asia | 2,839,618 |
🇨🇳 China | Asia | 2,217,894 |
🇵🇭 Philippines | Asia | 1,982,333 |
🇸🇻 El Salvador | Latin America & Caribbean | 1,407,622 |
🇻🇳 Vietnam | Asia | 1,331,192 |
🇨🇺 Cuba | Latin America & Caribbean | 1,312,510 |
🇩🇴 Dominican Republic | Latin America & Caribbean | 1,279,900 |
🇬🇹 Guatemala | Latin America & Caribbean | 1,148,543 |
🇰🇷 Korea | Asia | 1,045,100 |
🇨🇴 Colombia | Latin America & Caribbean | 928,053 |
🇭🇳 Honduras | Latin America & Caribbean | 843,774 |
🇨🇦 Canada | Northern America | 821,322 |
🇯🇲 Jamaica | Latin America & Caribbean | 804,775 |
🇭🇹 Haiti | Latin America & Caribbean | 730,780 |
🇬🇧 United Kingdom | Europe | 676,652 |
🇻🇪 Venezuela | Latin America & Caribbean | 667,664 |
🇧🇷 Brazil | Latin America & Caribbean | 618,525 |
🇩🇪 Germany | Europe | 537,484 |
🇪🇨 Ecuador | Latin America & Caribbean | 518,287 |
🇵🇪 Peru | Latin America & Caribbean | 471,988 |
🇳🇬 Nigeria | Africa | 448,405 |
🇺🇦 Ukraine | Europe | 427,163 |
🇮🇷 Iran | Middle East | 407,283 |
🇵🇰 Pakistan | Asia | 399,086 |
Rest of World | 11,637,634 | |
Total | 46,182,089 |
Mexicans are followed in this ranking by Indians, Chinese, and Filipinos, though most immigrants on this list come from countries in the Latin American and Caribbean region.
On the other hand, only three European countries are among the top sources of U.S. immigrants: the UK, Germany, and Ukraine.
Immigration continues to be a significant factor contributing to the overall growth of the U.S. population. Overall population growth has decelerated over the past decade primarily due to declining birth rates.
Between 2021 and 2022, the increase in the immigrant population accounted for 65% of the total population growth in the U.S., representing 912,000 individuals out of nearly 1.4 million.
If you enjoyed this post, be sure to check out Visualized: Why Do People Immigrate to the U.S.? This visualization shows the different reasons cited by new arrivals to America in 2021.
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