A Meta-Analysis of Global Urban Land Expansion. – Sciencing/University of Wisconsin-Madison. Other creatures and plants have a much greater effect on what happens. i would like to know total land area usable in which how much human worldwide cover the area and how much is balance to be utalize hope my query is clear. How much of the land on Earth is covered by humans? 7 billion folks would take up about 14 billion square feet, which I think is about 500 square miles. Sea, Fertile Land, Desert, Hills and High mountains are essential part of nature’s echo system and nature’s cycle of seasons. Did you actually write this? 70% of the Earth is covered with water so how are humans covering 90% of the Earth? Brazil. 100%. No matter how you measure it, humans are a SMALL percentage of what goes on on earth. 40 billion people would also raise the CO2 emission greatly causing inccreased climate change, which is the cause of stronger hurricanes, animal and plant population decrease and poor air quality for everyone, shortening the life span of humans. The team looked for planets around 10% larger than Earth as this would mean more habitable land is likely. It is very telling that you would leave the reader with that as an actual conclusion, which essentially defeats any of the numbers you provided prior to your “glass-half-empty”conclusion. If we exclude mountains, Arctic and Antarctic regions, and severe deserts, we are left with about two thirds of the Earth's land surface that is habitable, though sometimes barely so. Jumping from the 10% to a nonsensical conclusion of 90% of perceived true wilderness, simply because of the “remote” remark, is just wrong. We simply do NOT know the answers to even apparently “simple” questions that “can” (might) be answered by “science.”. Curious Meerkat uses cookies. I’ve reported the answer to Quora as plagiarised. % of Earth’s total surface that is land – About 29% of the total surface of the earth is land (the rest is water), Types of land – Of that, there is habitable land (that we can live on) and non habitable land, and agricultural (including land that livestock can be farmed on) and arable land (more fertile land with topsoil for growing crops). This question is an interesting one because, when my friend asked me the other day, I could tell her confidently that not only did science know the answer, science had multiple different ways to quantify that answer, but that I had absolutely no idea what it was. It’s unfortunate that you chose to pick out just one sentence from my article and ignore the science that was sitting next to you. This site uses Akismet to reduce spam. I’m sorry you didn’t enjoy the article. We also use third-party cookies that help us analyze and understand how you use this website. https://www.quora.com/How-much-land-on-Earth-in-terms-of-percentage-is-populated-by-humans. This figure gives us an estimate of roughly 900,000 km2 of human-covered land worldwide. These cookies will be stored in your browser only with your consent. Today, the world population uses approximately 50 percent of total habitable land for agriculture. The FAO GLC SHARE data shows that 12.6% of land is categorised as cropland. Ultimately there is no one right answer to this question since there are many ways to interpret it – I tried to present a number of different ways of looking at the same question and provide some kind of answer to each. Approximately 17.6 million square kilometers (6.8 million square miles) of land is used to grow crops, About 50% of the world’s habitable land is used for agriculture, 37% for forests, 11% for shrubland, 1% for urban development, and 1% is freshwater, Agriculture – 51 million km², or 31.6 million mi.², Forests – 39 million km², or 24.2 million mi.², Shrubs – 12 million km², or 7.4 million mi.², Urban – 1.5 million km², or 0.93 million mi.², Freshwater – 1.5 million km², or 0.93 million mi.². Your email address will not be published. We contribute only about 0.3% of the atmospheric CO2, so if we stopped everything tomorrow, it would barely register. The correct figure for the percentage of the earth’s land mass which is actually occupied by humans is .03%. Humans have disturbed a very small portion of the earths surface. Or a little less than 4 acres each. The US Department of Agriculture has identified six major types of land use in the US. If you’d taken the time to read the whole article you’d see that in that particular sentence I was referring to the amount of available land that was in some way impacted by humans. In The Salt of the Earth (2014 a photographer Sebastiao Salgado suggested that half of the world is inhabited. In order, the countries with the most total cultivated land area are: Read more in this guide about the future availability and capacity of agricultural land to grow/produce food into the future. If we do or don’t do it, someone will laugh, Your email address will not be published. Earthquakes can cause tsunamis which can kill hundreds of thousands of people, injuring countless others and destroy decades of human development in a matter of minutes. This even defeats the 70% of water since you clearly only typed “90% of earth”opposed to “90% of land” in your article (both of which would be wrong). A meta-analysis in 2011, which included 326 studies of urban landcover using remote sensing technology such as satellite images, found that urban landcover increased by nearly 60,000 km2 between 1970 and 2000. Habitable vs uninhabitable land. … approximately 37% of the world’s land surface was agricultural land. Also, when it comes to planets, bigger is better. I don’t think the Manhattan fact is true. As you go West- those percentage probably go up quite a bit- Nebraska, Montana, Colorado, Utah, Idaho etc. Most of you wouldn’t know true science if it was sitting next to you. The Earth is 4.56 billion years old, while animal life on land has only existed for the past 500 million years. Sorry what I meant to say is that your text was plagiarized by Rithwik. You can fly for a long time and hardly see a sign of human existance along many parts of the continent.


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