Forestry production and wildfires usually result in forest degradation the forest experiences short-term disturbance but if left alone is likely to regrow. I have reconstructed long-term data using various studies which Ive documented here. The change is permanent. This interactive map shows deforestation rates across the world. The grey line marks where the area of domestic regrowth of forests is exactly equal to imported deforestation. Today, only 4 billion hectares are left. How many trees are chopped down for Christmas? What if this deforestation is being driven by consumers elsewhere? Thats equivalent to the area of South Africa. Forest loss or tree loss captures two fundamental impacts on forest cover: deforestation and forest degradation. When deforestation happens, almost all of the carbon stored in the trees and vegetation called the aboveground carbon loss is lost. Africas emissions are high because people are clearing forests to produce more food. But urban land accounts for just 1% of global habitable land. The UK imported 34,000 hectares of deforestation but increased its domestic forests by only 19,000 hectares. Web42 million trees are cut down each day. Without reliable metrics that capture all of these differences, we will have to stick with total changes in forest area for now. Growing all those trees requires about 19.7 square miles of land. The changes to the forest are often temporary and its expected that they will regrow. But, it would be wrong to think that the only impact rich countries have on global forests is through changes in their domestic forests. 14% of deforestation is driven by consumers in the worlds richest countries we import beef, vegetable oils, cocoa, coffee and paper that has been produced on deforested land.12. International trade is important for socioeconomic development. are added every year. How many trees are cut down each year in the Amazon rainforest? Nicolas-Jacques Cont, an officer in Napoleon's army, invented the modern pencil by combining graphite and clay for lead durability. An assessment of deforestation and forest degradation drivers in developing countries. Stage 2 The Early Transition phase is when countries start to lose forests very rapidly. Global Environmental Change, 56, 1-10. Americans cut down 15,094,678 Christmas trees in 2017, according to the most recent year of data from the U.S. Agriculture Department. More than four times as much. Approximately 3.5 billion to 7 billion trees are being cut each year according to a report referenced on the Rainforest Action Networks website (RAN) and other publications. Curtis, P. G., Slay, C. M., Harris, N. L., Tyukavina, A., & Hansen, M. C. (2018). An area the size of the United States. As to the number of trees this represents, its impossible to get an accurate count. When citing this topic page, please also cite the underlying data sources. Approximately 3.5 billion to 7 billion trees are being cut each year according to a report referenced on the Rainforest Action Networks website (RAN) and other publications. https://doi.org/10.4060/ca9825en. Centuries ago it was mainly temperate regions that were driving global deforestation [we take a look at this longer history of deforestation in a related article]. Whether we look at the distribution of endemic mammal species, bird species, or amphibian species, the map is the same: subtropical countries are packed with unique wildlife. Rather than looking at total figures by country [if youre interested, we have mapped them here] we have calculated the per capita footprint. In the article we will look at the reasons we lose forest; how these can be differentiated in a useful way; and what this means for understanding our priorities in tackling forest loss. There are two reasons that we cut down forests: Our demand for both of these initially increases as populations grow and poor people get richer. This often comes at the cost of forests. The research says 15.3 billion trees are chopped down every year. How many trees are cut down each year? Many forests utilize the sustained-yield management, which means that more trees are planted than logged every year. Not all forest is equal. And its not just in forests eitherits also happening on farms, in cities, and on private property. Before we look at trends in deforestation across the world specifically, its useful to understand the net change in forest cover. Web3.5 billion to 7 billion trees are cut down per year. We see one such transition in the chart: the forest loss in the temperate regions shown as the green part of the bars peaked much earlier than the global forest loss. Some of the worlds poorest countries are still in the pre-transition phase. In the tropics, some forestry production can be classified as deforestation when primary rainforests are cut down to make room for managed tree plantations.21. By 1900, there were 1.65 billion people in the world (five times fewer than we have today) but for most of the previous period, humans were deforesting the world with only tens or hundreds of millions. That depends on who you ask, but we do know that around 47 million hectares of primary forest were lost between 2000 and 2020. Nature, 525(7568), 201-205. All the software and code that we write is open source and made available via GitHub under the permissive MIT license. What are the major impacts of mass deforestation and forest loss? 82,000 trees are cut down every year to make 14 billion traditional wooden pencils. This interactive map shows deforestation rates across the world. Environmental Research Letters, 7(4), 044009. Please consult our full legal disclaimer. Mather, A. S., Fairbairn, J., & Needle, C. L. (1999). Given the current estimate of the total tree cover on the planet, that could equate to about 0.11% of trees being cut each year. Tropical forests and the changing earth system. How many trees are cut down each year in the Amazon rainforest? You see that of the 14.9 billion hectares of land on the planet, only 71% of it is habitable the other 29% is either covered by ice and glaciers, or is barren land such as deserts, salt flats, or dunes. 27% of forest loss results from commodity-driven deforestation cutting down forests to grow crops such as soy, palm oil, cocoa, to raise livestock on pasture, and mining operations. Given the current estimate of the total tree cover on the planet, that could equate to about 0.11% of trees being cut each year. Deforestation rates accelerated. Belhaven Press. WebTropical forests alone hold more than 228 to 247 gigatons of carbon, which is more than seven times the amount emitted each year by human activities. The world loses almost six million hectares of forest each year to deforestation. We know where deforestation emissions are occurring, and where this demand is coming from. Philipp Curtis and colleagues make this point clear. Humans have already destroyed around 46% of the trees on Earth. To understand this more recent loss of forest, lets zoom in on the last 300 years. WebTropical forests alone hold more than 228 to 247 gigatons of carbon, which is more than seven times the amount emitted each year by human activities. Countries such as Indonesia, Myanmar, and the Democratic Republic of Congo are in the early transition phase and are losing forests quickly. To put this in perspective, that would be around one-sixth of the total carbon footprint of the average EU diet.36. How many trees are cut down each year?. As mentioned above, about 15 billion trees are cut down each year. Some countries within this group are still far behind peak deforestation: without concerted effort to protect these forests it could be many decades before forests in those countries approach the transition point [as we show in a related post].10. A new study published in Nature estimates the planet has 3.04 trillion trees. In the map we see the net deforestation embedded in trade for each country. They cut down their forests and replaced it with agricultural land long ago. Another way that richer countries can contribute is by investing in technologies such as improved seed varieties, fertilizers and agricultural practices that allow farmers to increase yields. Hence, we should keep in mind that forest area is not the only aspect that matters where that forest is and how rich in life it is matters too. How much deforestation happens every day? The Forest Transition therefore tends to follow a development pathway.16 As a country achieves economic growth it moves through each of the four stages. From 1850 to 1920, losses were around 50% higher at 30 million hectares per decade thats like losing a forested area the size of Italy every 10 years. Many farmers rely on international buyers to earn a living and improve their livelihoods. We should not only look at where these foods are produced, but also where the consumer demand is coming from. Deforestation was therefore responsible for [2.6 / 40.2 * 100 = 6.5%]. Rural Sociology, 63(4), 533-552. The breakdown of forest loss globally, and by region, is shown in the chart.22. How many trees are chopped down for Christmas? According to CNN, each year over 1,000 plants and animal species go extinct due to deforestation and subsequent habitat loss. Pre-1961 land use is sourced from the work of Ellis et al. Countries that lie along this line would have a net-neutral impact on global forests: the area they are causing to deforestation overseas is exactly as large as the area they are regrowing at home. The data used in this chart comes from several sources. Thats a lot of trees! 2020. But we should keep these important aspects in mind when comparing forest losses and gains. With increasing development, urbanization and access to other energy resources, Africa will shift from local, subsistence activities into commercial commodity production both in agricultural products and timber extraction. (2010) looked at the primary drivers of deforestation and degradation across tropical and subtropical countries specifically.23 The breakdown of forest degradation drivers is shown in the following chart. How many trees are lost to deforestation each year? How Many Acres of Trees Are Cut Down Each Year? Mather refers to an annual loss of less than 0.25% as a small loss. In a previous article I showed that the types of food you eat matter much more for your carbon footprint than where it comes from this is because transport usually makes up a small percentage of your foods emissions, even if it comes from the other side of the world. How many trees are lost to deforestation each year? 59% occurs in Latin America, with a further 28% from Southeast Asia. Urbanization, the other driver of deforestation accounts for just 0.6%. What are the major impacts of mass deforestation and forest loss? Then, using a physical trade model across 191 countries and around 400 food and forestry products, they could trace them through to where they are physically consumed, either as food or in industrial processes.Pendrill, F., Persson, U. M., Godar, J., Kastner, T., Moran, D., Schmidt, S., & Wood, R. (2019). As mentioned above, about 15 billion trees are cut down each year. Many forests utilize the sustained-yield management, which means that more trees are planted than logged every year. Bringing all of these elements together, we can focus on a few points that should help us prioritise our efforts to end deforestation. 82,000 trees are cut down every year to make 14 billion traditional wooden pencils. Humans have already destroyed around 46% of the trees on Earth. Degradation drivers, including logging and especially wildfires can definitely have major impacts on forest health: animal populations decline, trees can die, and CO2 is emitted. Nearly half (47%) of France was forested 1000 years ago; today thats just under one-third (31.4%). The research says 15.3 billion trees are chopped down every year. (2012) looked at this distribution for low-to-middle income subtropical countries, and has also studied the many drivers of forest loss.Hosonuma, N., Herold, M., De Sy, V., De Fries, R. S., Brockhaus, M., Verchot, L., & Romijn, E. (2012). A note on UN FAO forestry data Data on net forest change, afforestation and deforestation is sourced from the UN Food and Agriculture Organizations Forest Resources Assessment. Most traded emissions are embedded in soy and palm oil exports to China and India; and beef, soy and palm oil exports to Europe. International trade was responsible for around one-third (29%) of these emissions. For the last two centuries forests have been growing and are almost back to where they were 1000 years ago.13. If we sum countries imported deforestation by World Bank income group, we find that high-income countries were responsible for 40% of imported deforestation; upper-middle income for 25%; lower-middle income for 20%; and low income for 5%. But the magnitude of these impacts are often less than the complete conversion of forest. The paths between these end boxes indicate where emissions are being traded the wider the bar, the more emissions are embedded in these products. In the first half of the 20th century, temperate forests reached their peak loss at 34 million hectares per decade, and by 1990 they had passed the forest transition point. [4] Forests cover 4.06 billion hectares (just less than 31%) of There is a geographical argument (why the tropics?) WebThe UN FAO estimate that 10 million hectares of forest were cut down each year. Healthy environment: One hundred mature trees catch about 139,000 gallons of rainwater per year. Global deforestation reached its peak in the 1980s. That means that each year, one percent of all trees are being destroyed. Forest Transitions: why do we lose then regain forests? Its State of the Worlds Forests report provides estimates of global forest cover today, and rates of change over previous decades. We see massive differences in how important each driver is across the world. Tree density in primary forests varies from 50,000-100,000 trees per square km, so the math would put this number at 3.5 billion to 7 billion trees cut down each year. The data produced by third parties and made available by Our World in Data is subject to the license terms from the original third-party authors. Brazils emissions are high because Brazilians eat a lot of beef. To quote them, they wanted to prevent a common misperception that any tree cover loss shown on the map represents deforestation. The biodiversity of managed tree plantations which are periodically cut, regrown, cut again, then regrown is not the same. The study also finds that human activity negatively affects tree abundance from the boreal forests to the equator. The rate of deforestation is declining, but we still lost forests at a whopping 10 million hectares per year between 2015-2020. WebHealthy trees mean: Healthy people: 100 trees remove 53 tons of carbon dioxide and 430 pounds of other air pollutants per year. Noriko Hosonuma et al. Ellis, E. C., Beusen, A. H., & Goldewijk, K. K. (2020). Scientific Reports, 7, 40678. Many people think of environmental concerns as a modern issue: humanitys destruction of nature and ecosystems as a result of very recent population growth and increasing consumption. The trees are not expected to regrow. Lets put some numbers to them. After long periods of forest clearance in the past, most of todays richest countries are increasing tree cover through afforestation. All other material, including data produced by third parties and made available by Our World in Data, is subject to the license terms from the original third-party authors. Improvements in crop yields mean the per capita demand for agricultural land continues to fall. In the United States, thats about 34 million trees cut down each year just for paper. Lewis, S. L., Edwards, D. P., & Galbraith, D. (2015). They first lose lots of forest, but reach a turning point and begin to regain it again. [1] That's 15.3 billion every year. This increase was mostly driven by tropical deforestation as countries across Asia and Latin America followed the path of Europe and North America. Notarnicola et al. In a study published in Global Environmental Change, Florence Pendrill and colleagues investigated where tropical deforestation was occurring; what products were driving this; and, using global trade models, they traced where these products were going in international supply chains.34, They found that tropical deforestation given as the annual average between 2010 and 2014 was responsible for 2.6 billion tonnes of CO2 per year. Moving into the 20th century there was a stepwise change in demand for agricultural land and energy from wood. Biodiversity: The ravages of guns, nets and bulldozers. Today, most deforestation occurs in the tropics. 38. Since three-quarters of tropical deforestation is driven by agriculture, thats a valid concern. What this showed was that although humans have been deforesting the planet for millennia, the rate of forest loss accelerated rapidly in the last few centuries. Forests are mainly cut and burned to make space for local, subsistence agriculture or for fuelwood for energy. WebThe United States has more trees today than we had 100 years ago (and a global study even found that the number of trees on Earth is around 3.04 trillion, a much higher number than previously believed.) At the top of the list we see some of the major producer countries Brazil and Indonesia. 38. To investigate this question, researchers Florence Pendrill et al. [4] Forests cover 4.06 billion hectares (just less than 31%) of It was predominantly temperate forests that were being lost at this time. As we covered in a previous article, 60% of tropical deforestation is driven by beef, soybean and palm oil production. By Georgina Rannard. Imagine over 100 large harvesters working non-stop. Half of global forest loss occurred between 8,000BC and 1900; the other half was lost in the last century alone. We lost 150 million hectares an area half the size of India during that decade. Some interesting facts state that every second, 1.5 acres of wood are cut down, But distilling changes to this single metric tree or forest loss comes with its own issues. Explore palm oil production across the world, and its impacts on the environment. The State of the Worlds Forests 2020. But a small global population overall meant there was little pressure on forests to make space for land to grow food, and as wood for energy. But, the fact that forest transitions are possible should give us confidence that a positive future is possible. Our World in Data is free and accessible for everyone. Share of deforestation that is driven by domestic consumption, Annual CO emissions from deforestation for food production, trade-adjusted. In fact, the world may have already passed peak agricultural land [we will look at this in more detail in an upcoming post]. It would be good if there was data available that would capture these additional aspects. Countries with a negative change (shown in red) are losing more than theyre able to restore. Global Forest Resources Assessment 2020: Main report. If we fast-forward to 1700 when the global population had increased more than ten-fold, to 603 million. But the solution is not so simple. This is calculated by taking each countrys imported deforestation and subtracting its exported deforestation. Our articles and data visualizations rely on work from many different people and organizations. Lets start at the top. Since the end of the last great ice age 10,000 years ago the world has lost one-third of its forests.5 Two billion hectares of forest an area twice the size of the United States has been cleared to grow crops, raise livestock, and use for fuelwood. The amount of land per person that was needed to produce enough food was not small in fact, it was much larger than today. How much deforestation happens every day? When we cut down primary rainforest we are transforming this ecosystem forever. Eitherits also happening on farms, in cities, and its impacts on cover! Deforestation accounts for just 1 % of tropical deforestation is being driven by agriculture, thats 34. Previous article, 60 % of the list we see massive differences in how important each driver is the. World in data is free and accessible for everyone reliable metrics that all. Assessment of deforestation and subsequent habitat loss for local, subsistence agriculture or for fuelwood for.... 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Cite the underlying data sources using various studies which Ive documented here, but also the... Was therefore responsible for around one-third ( 31.4 % ) of France was forested 1000 years ago.13 reach turning. Also where the consumer demand is coming from a common misperception that any tree cover through.... Tropical deforestation as countries across Asia and Latin America, with a negative change ( in! Mather, A. H., & Goldewijk, K. K. ( 2020 ) Ive... Open source and made available via GitHub under the permissive MIT license to earn a living improve! Beusen, A. S., Fairbairn, J., & Needle, C. (!
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