beef consumption threatening rainforest

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Re: beef consumption threatening rainforest

Postby Tom on Wed May 11, 2022 5:28 pm

D_Glenn wrote:A bigger problem, imo, is tearing down the rainforests in order to have more land to plant sugarcane for environmentally friendly ethanol fuel :(

And the US buys ethanol fuel from Brazil.

And the US is promoting more ethanol. So more Rainforest will be coming down.

.


Very true, and not a lot of attention is paid to this driver of rainforest destruction.
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Re: beef consumption threatening rainforest

Postby Ian C. Kuzushi on Wed May 11, 2022 5:55 pm

I am familiar with soy being a culprit, but as of yet, sugar cane is planted almost exclusively in already slash and burned land that was previously used for pasture or other agricultural use. So, it's not currently a primary direct driver of deforestation.

I am, however, aware that Bolsonaro has made some horrible policy decisions to expand and ramp up this sort of intensive and destructive agriculture.

Rudorff et al. (2010) found that sugarcane expands almost exclusively over pasture land and annual agricultural crops in the state of São Paulo. Some researchers, however, have theorized that cattle pastures are displaced by mechanized farming and, as a result, are reconstituted in distant regions on forest frontiers


https://www.google.com/url?sa=t&rct=j&q ... Uz_wZC7D28

Some broad strokes.

People have been deforesting the Earth for thousands of years, primarily to clear land for crops or livestock. Although tropical forests are largely confined to developing countries, they aren’t just meeting local or national needs; economic globalization means that the needs and wants of the global population are bearing down on them as well. Direct causes of deforestation are agricultural expansion, wood extraction (e.g., logging or wood harvest for domestic fuel or charcoal), and infrastructure expansion such as road building and urbanization. Rarely is there a single direct cause for deforestation. Most often, multiple processes work simultaneously or sequentially to cause deforestation.

The single biggest direct cause of tropical deforestation is conversion to cropland and pasture, mostly for subsistence, which is growing crops or raising livestock to meet daily needs. The conversion to agricultural land usually results from multiple direct factors. For example, countries build roads into remote areas to improve overland transportation of goods. The road development itself causes a limited amount of deforestation. But roads also provide entry to previously inaccessible—and often unclaimed—land. Logging, both legal and illegal, often follows road expansion (and in some cases is the reason for the road expansion). When loggers have harvested an area’s valuable timber, they move on. The roads and the logged areas become a magnet for settlers—farmers and ranchers who slash and burn the remaining forest for cropland or cattle pasture, completing the deforestation chain that began with road building. In other cases, forests that have been degraded by logging become fire-prone and are eventually deforested by repeated accidental fires from adjacent farms or pastures.

Although subsistence activities have dominated agriculture-driven deforestation in the tropics to date, large-scale commercial activities are playing an increasingly significant role. In the Amazon, industrial-scale cattle ranching and soybean production for world markets are increasingly important causes of deforestation, and in Indonesia, the conversion of tropical forest to commercial palm tree plantations to produce bio-fuels for export is a major cause of deforestation on Borneo and Sumatra.


Underlying Causes

Although poverty is often cited as the underlying cause of tropical deforestation, analyses of multiple scientific studies indicate that that explanation is an oversimplification. Poverty does drive people to migrate to forest frontiers, where they engage in slash and burn forest clearing for subsistence. But rarely does one factor alone bear the sole responsibility for tropical deforestation.

State policies to encourage economic development, such as road and railway expansion projects, have caused significant, unintentional deforestation in the Amazon and Central America. Agricultural subsidies and tax breaks, as well as timber concessions, have encouraged forest clearing as well. Global economic factors such as a country’s foreign debt, expanding global markets for rainforest timber and pulpwood, or low domestic costs of land, labor, and fuel can encourage deforestation over more sustainable land use.

Access to technology may either enhance or diminish deforestation. The availability of technologies that allow “industrial-scale” agriculture can spur rapid forest clearing, while inefficient technology in the logging industry increases collateral damage in surrounding forests, making subsequent deforestation more likely. Underlying factors are rarely isolated; instead, multiple global and local factors exert synergistic influences on tropical deforestation in different geographic locations.
Rates of Tropical Deforestation

Several international groups produce routine estimates of tropical deforestation, most notably the Food and Agriculture Organization (FAO) of the United Nations, which has been producing a global forest resources assessment every five to ten years since the late 1940s. The FAO report is based on statistics provided by countries themselves, and because the ability of countries to accurately assess their forest resources varies depending on their financial, technological, and institutional resources, the estimates for some countries are likely more accurate then others. Many countries use satellite imagery as the basis for their assessments, and a few research teams have used satellite data as the basis for worldwide estimates of tropical deforestation in the 1980s and 1990s.

Some scientists and conservationists argue that the FAO provides too conservative an estimate of rates of deforestation because they consider any area larger than one hectare (0.01 square miles) with a minimum tree cover of 10 percent to be forested. This generous definition of “forest” means that a significant amount of degradation can occur before the FAO categorizes an area as deforested. On the other hand, some satellite-based studies indicate deforestation rates are lower than even the FAO reports suggest. In the FAO’s most recent forest assessment report, published in 2005, the organization itself revised downward the deforestation rates for the 1990s that it reported in 2001. Despite revisions and discrepancies, the FAO assessment is the most comprehensive, longest-term, and widely used metric of global forest resources.


In addition to local factors, international trends drive deforestation. The expansion of palm oil plantations in Indonesia and Malaysia is a response to high petroleum prices and, ironically, to an increasing global demand for bio-fuels perceived to be “green.” (Photograph ©2006 Badly Drawn Dad.)
Graph of tropical forest loss by area deforested


The FAO report does not compile statistics for tropical forest regions as a whole, but the country-by-country and regional-scale statistics provide a grim picture. The scope and impact of deforestation can be viewed in different ways. One is in absolute numbers: total area of forest cleared over a certain period. By that metric, all three major tropical forest areas, including South America, Africa, and Southeast Asia, are represented near the top of the list. Brazil led the world in terms of total deforested area between 1990 and 2005. The country lost 42,330,000 hectares (163,436 square miles) of forest, roughly the size of California. Rounding out the top five tropical countries with the greatest total area of deforestation were Indonesia, Sudan, Myanmar, and the Democratic Republic of Congo.

Although all major tropical forest sub-regions (coded by color) are represented in a list of the top 20 countries that cleared the largest percentage of their forests between 1990 and 2005, African countries (blue bars) dominate, beginning with Comoros, a small island nation north of Madagascar. (Graphic by Robert Simmon, based on data provided by individual countries to the U.N. Foreign Agricultural Organization for the Global Forest Resources Assessment Report 2005.)


Another way to look at deforestation is in terms of the percent of a country’s forest that was cleared over time. By this metric, the island nation of Comoros (north of Madagascar) fared the worst, clearing nearly 60 percent of its forests between 1990 and 2005. Landlocked Burundi in central Africa was second, clearing 47 percent of its forests. The other top five countries that cleared large percentages of their forests were Togo, in West Africa (44 percent); Honduras (37 percent); and Mauritania (36 percent). Thirteen other tropical countries or island territories cleared 20 percent or more of their forests between 1990-2005.

back NASA Tropical Deforestation Research
back Climate Impacts




https://earthobservatory.nasa.gov/featu ... pdate3.php
Last edited by Ian C. Kuzushi on Wed May 11, 2022 5:58 pm, edited 1 time in total.
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Re: beef consumption threatening rainforest

Postby Tom on Wed May 11, 2022 7:22 pm

As Devlin wrote, sugar cane for ethanol productionwill be a major source of rainforest destruction in the Amazon River basin. It's correct to say it's not yet a major driver, but all indications are sugarcane production will be a major factor in continuing denuding of the rainforest in Brazil.

https://www.sierraclub.org/sierra/brazil-sugarcane-rush-poses-new-threat-amazon-rainforest

https://www.sciencedirect.com/science/article/pii/S2530064420300262
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Re: beef consumption threatening rainforest

Postby Ian C. Kuzushi on Wed May 11, 2022 7:49 pm

Look, the more I read the science and projections, the harder it is to be optimistic. But, the alternative is worse.

There is a chance that Lula could win against Jair, and that he would take major policy action to reverse the asinine trends of the current protofascist regime. There is no predicting the future. But, we must take steps to shape it. For that reason, Devlin's post was an important one. His tense was not consistent throughout his post, so I simply sought to bring clarity. Also, while the SD link is not saying anything completely crazy, it is all complete speculation in regards to whether sugar cane will or will not require deforestation. It makes the argument that this will happen, but that hasn't been the case in the past, so we will have to see. Really, there is no need to get hyperfocused on one specific crop, even though the processing of cane is more deleterious. The fact is, industrial ag of all sorts is a major problem in the rainforests, as is cattle production.

It sure would be nice to have a popular revolt against Bolsonaro and to see some progressive, Gaia-loving policy restored and expanded. For the love of Pachamama, it would be nice to get some good news!
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Re: beef consumption threatening rainforest

Postby Tom on Thu May 12, 2022 9:02 am

Ian C. Kuzushi wrote: For the love of Pachamama . . .



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8-)
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Re: beef consumption threatening rainforest

Postby jimmy on Thu May 12, 2022 2:31 pm

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Re: beef consumption threatening rainforest

Postby Tom on Thu May 12, 2022 4:40 pm

About feckin' time you showed up to this conversation, jimmy. ;D
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Re: beef consumption threatening rainforest

Postby jimmy on Thu May 12, 2022 6:49 pm

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