Top Ten Counties Losing Forests in the South
World Resources Institute (WRI) released a new map Nov. 1 that identifies the hotspots where urban and suburban development are putting forests at risk in the southern U.S. Areas experiencing the most forest loss to development between 2001 and 2006 (the most recent years for which data are available) were counties near Houston, Atlanta, Raleigh, N.C., and Charlotte, N.C. Counties around San Antonio, Jacksonville, Fla., and Birmingham, Ala., round out the top ten (Table 1).
Here are some additional highlights:
- Harris County near Houston, Texas, lost more forest to development than any other county in the South during this time period.
- Among southern states, Georgia experienced the most forest conversion to such development, nearly twice the amount of runner-up Texas.
- Development in Georgia, Texas and Florida alone accounted for almost 50 percent of all forest loss in the South due to development.
- In total, these top ten counties converted approximately 123,000 acres of forest to development over five years, an area three times the size of Washington, DC.
Table 1. Ten counties in the U.S. South experiencing the most annual deforestation due to urban and suburban development (2001-2006) Rank County (metro area) State Forest acres converted per year (2001-2006)
|Rank||County (metro area)||State||Forest acres converted per year (2001-2006)|
|4||Wake (Raleigh)||North Carolina||2,407|
|6||Mecklenburg (Charlotte)||North Carolina||2,139|
|7||Bexar (San Antonio)||Texas||1,897|
Covering nearly 214 million acres, the forests of the southern U.S. stretch from Texas to Virginia, and from Kentucky down to Florida. These forests are the nation’s wood basket, supporting 600,000 jobs. They also provide a multitude of other benefits or ecosystem services such as watershed protection, carbon storage and recreation. As profiled in WRI’s Southern Forests for the Future, suburban expansion is the biggest threat to the quality and quantity of these forests.
The new map shows a continuation of trends from the 1990s. But trends since 2006 may be different. It is likely that forest conversion patterns in the region have changed since the economic downturn started in 2008. Given that housing starts have declined over the past few years, we would expect to see a reduction in forest conversion once the data become available.
Therein lies one of the challenges in monitoring changes in the nation’s forests. It can take years for data on forest cover change to be processed and made publicly available. A forest cover monitoring system that makes information available more frequently would enable decision-makers and forest stakeholders to better understand what is happening to forests in a more timely manner.
But a more fundamental question raised by the WRI analysis is how can the South break the link between growth and forest conversion? Paradoxically, expanding suburban areas are clearing the same forests that they depend upon for clean freshwater, recreation and the beautiful vistas that make living in those regions so attractive in the first place.
Robust markets for sustainably managed forest products such as timber and pulpwood are an important start. Many woodland owners need to earn financial benefits from working their forests. Without such a revenue stream, selling land for real estate development may become an attractive alternative when the housing market rebounds.
Likewise, innovative approaches for financially rewarding woodland owners for the benefits their forests provide need to become more mainstream. These approaches could include payments for watershed services, working forest conservation easements, habitat credits and others, as recently profiled by WRI.
Through these and similar approaches, the South may be able to have its growth and its forests, too.
For more information, click here.
When developing the map, WRI performed a county level analysis on the National Land Cover Database 2006 Land Cover Change dataset which was produced by the Multi-Resolution Land Characteristics Consortium, a coalition of federal agencies including the U.S. Geological Survey, U.S. Department of Agriculture Forest Service, National Oceanic and Atmospheric Association and others. WRI analyzed forested areas in 2001 that by 2006 had become developed or characterized by a high percentage of buildings, asphalt, concrete and similar constructed infrastructure.
More maps on forest cover loss/gain are available on the Southern Forests for the Future website.
EcoWatch Daily Newsletter
In Major Win for Indigenous Rights, Supreme Court Rules Much of Eastern Oklahoma Is Still a Reservation
Much of Eastern Oklahoma, including most of Tulsa, remains an Indian reservation, the Supreme Court ruled on Thursday.
- Federal Judge Orders Trump Admin to Give Native Americans Their ... ›
- Police Were Ready to Shoot Indigenous Pipeline Protesters in ... ›
- Climate Justice, Indigenous Rights Advocates Rally for Wet'suwet'en ... ›
By Tiffany Means
Summer and fall are great seasons to enjoy the outdoors. But if you're already spending extra time outside because of the COVID-19 pandemic, you may be out of ideas on how to make fresh-air activities feel special. Here are a few suggestions to keep both adults and children entertained and educated in the months ahead, many of which can be done from the comfort of one's home or backyard.
The coronavirus may linger in the air in crowded indoor spaces, spreading from one person to the next, the World Health Organization acknowledged on Thursday, as The New York Times reported. The announcement came just days after 239 scientists wrote a letter urging the WHO to consider that the novel coronavirus is lingering in indoor spaces and infecting people, as EcoWatch reported.
- Airborne Coronavirus Transmission Must Be Taken Seriously, 239 ... ›
- Trump Halts WHO Funding Amidst Criticism of His Own Coronavirus ... ›
- Here's Why COVID-19 Can Spread So Easily at Gyms and Fitness ... ›
- Is the New Coronavirus Airborne? A Study From China Finds Evidence ›
By Angela Nicoletti
The eastern slopes of the Andes Mountains in central Perú are among the most remote places in the world.
- Global Frog Pandemic May Become Even Deadlier as Strains ... ›
- New Species of Diamond Frog Discovered in Remote Pocket of ... ›
- Frogs Are on the Verge of Mass Extinction, Scientists Say - EcoWatch ›
A new analysis by scientists at the Swiss-based International Union for Conservation of Nature (IUCN) found that lemurs and the North Atlantic right whale are on the brink of extinction.
- Trump Admin Denies Endangered Species Protections to Pacific ... ›
- Trump Admin Failed to Protect 241 Species From Extinction ... ›
- New Border Wall Construction Threatens 8 Species With Extinction ... ›
By Julia Vergin
It is undisputed that vitamin D plays a role everywhere in the body and performs important functions. A severe vitamin D deficiency, which can occur at a level of 12 nanograms per milliliter of blood or less, leads to severe and painful bone deformations known as rickets in infants and young children and osteomalacia in adults. Unfortunately, this is where the scientific consensus ends.
Where Does the Deficiency Begin?<p>Nobody knows exactly how much vitamin D a person actually needs. The question of when a deficiency starts is correspondingly controversial. However, vitamin D is becoming increasingly popular.Not only is the pseudo-scientific literature on the "sun vitamin" experiencing an upswing, but the number of published studies has also increased enormously in recent years. For example, in 2019 <a href="https://academic.oup.com/edrv/article/40/4/1109/5126915" target="_blank">a study found that</a> Vitamin D is responsible for keeping the skeleton functional and is associated with cardiovascular diseases, type 2 diabetes and various types of cancer. <br></p>
An All-Rounder<p>Vitamin D levels in the body rise and fall according to sun exposure. If sufficient UV rays reach the skin, the body is able to produce the vitamin itself. However, the human body only derives an estimated 10 to 20 percent of its daily requirement from food.</p><p>The vitamin D that we synthesize from sunlight or food is not biologically active at first. Before the kidneys can produce the biologically active form of the vitamin, known as calcitriol, and release it into the blood, some metabolic processes must take place beforehand.</p><p>In addition, many organs have receptors to which the precursor of calcitriol binds. Further, this substance is also present in blood.</p><p>From this precursor, the organs then produce calcitriol themselves, which the body then uses for countless other processes in the body. This form of vitamin D thus regulates insulin secretion, inhibits tumor growth, and promotes the formation of red blood cells as well as the survival and activity of macrophages, which are important for the <a href="https://www.mdpi.com/2072-6643/5/7/2502/htm" target="_blank">immune system.</a></p>
Low Vitamin D, Severe COVID-19 Disease?<p>A research study carried out <a href="https://www.sciencedirect.com/science/article/pii/S2352364620300067?via%3Dihub" target="_blank">at the University of Hohenheim</a> has now established a link between vitamin D deficiency, certain previous diseases, and severe cases of COVID-19.</p><p>According to the study, "there is a lot of evidence that several non-communicable diseases (high blood pressure, diabetes, cardiovascular diseases, metabolic syndrome) are associated with low vitamin D plasma levels. These comorbidities, together with the often accompanying vitamin D deficiency, increase the risk of severe COVID-19 events."</p><p>"This statement is completely correct," said Martin Fassnacht, head of endocrinology at the University Hospital of Würzburg. However, he qualifies that it is a pure association, "i.e. a mere observation that these events occur together.</p><p>Dr. Fassnacht is very critical of the hype surrounding vitamin D, but not because he denies the vitamin serves important functions. However, studies on humans have not been able to show that vitamin D has the healing powers many often propagate.</p><p>Fassnacht says, "If you take a closer look, the hopes that the administration of vitamin D has a healing effect have not been confirmed so far."</p>
Association Versus Intervention Studies<p>Many studies on the vitamin are association or observational studies. "By definition, these studies cannot prove the causal relationship, but only point to mere correlations," said Fassnacht. The physician tries to illustrate this with an example:</p><p>"Imagine two groups of 80-year-olds. One group is spry, active and does sports. If you compare them with another group living in nursing homes, the difference in vitamin D levels will be dramatic. Life expectancy would also be extremely different."</p><p>But to try to explain the difference in fitness by vitamin D status alone is far too simplistic. "Vitamin D levels are a good measure of how sick someone is. But not more," says Fassnacht. </p><p>According to Fassnacht, none of the intervention studies carried out to date -- that specifically examined the effect of vitamin D on various diseases -- has been able to confirm the previous association and laboratory studies or the presumed positive effect of vitamin D.</p>
Further Research Is Needed<p>"If a coronavirus infection is suspected, it is therefore absolutely necessary to check the vitamin D status and quickly correct any possible deficit," said the recommendation of the paper published by the University of Hohenheim.</p><p>"Studies are underway to see whether vitamin D helps in COVID-19 infection, but I personally do not believe that this is really the case," says endocrinologist Fassnacht. Nevertheless, he says it is of course useful to carry out these studies.<br></p><p>"I don't want to rule out that there are actually subgroups of people who benefit from an additional vitamin D dose," he says. After all, this has been proven to be the case with a severe deficit.</p><p>In view of the study situation, Fassnacht does not think much of preventive, nationwide vitamin D substitutes. "My belief that the vitamin helps somewhere is very low. But, of course, I can be wrong."</p>
- 8 Ways to Tell if You Are Vitamin D Deficient - EcoWatch ›
- 7 Healthy Foods That Are High in Vitamin D - EcoWatch ›
- 7 Nutrient Deficiencies That Are Incredibly Common ›
Ocean scientists have been busy creating a global network to understand and measure changes in ocean life. The system will aggregate data from the oceans, climate and human activity to better inform sustainable marine management practices.
EcoWatch sat down with some of the scientists spearheading the collaboration to learn more.
Climate models are predicting faster warming of the North Atlantic Ocean, which will shift the Gulf Stream. NASA
- Could the Climate Crisis Spell the End for Maine Lobster? - EcoWatch ›
- 5 Reasons Why Biodiversity Matters - EcoWatch ›
- World Leaders, Media Ignore Biodiversity Report Detailing Mass ... ›
- The Top 10 Ocean Biodiversity Hotspots to Protect - EcoWatch ›