(NaturalNews) Scientists from the University of Wisconsin-Madison and the University of Minnesota at Morris have found that increased levels of atmospheric carbon dioxide have led to the rapid growth of certain tree species. The quaking aspen, a popular North America deciduous tree, has seen a 50 percent acceleration in growth over the past 50 years due to increased CO2 levels.
Trees are necessary climate regulators since they process carbon dioxide and give off oxygen. Humans process oxygen and give off carbon dioxide, working harmoniously with natural plant life to maintain proper atmospheric composition. Since natural forests represent about 30 percent of the earth's surface, they are highly effective at segregating greenhouse gases.
The quaking aspen is a vibrant, dominant tree found in both Canada and the United States. It is considered to be a "foundation species", meaning that it helps dictate the dynamics of the plant and animal communities that surround it. Roughly 42 million acres in Canada and 6.5 million acres in Wisconsin and Minnesota are composed of aspen trees.
Elevated levels of CO2 will naturally lead to increased plant growth since CO2 is a precursor to plant food. Tree-ring analyses verified that aspen trees have been growing at an increasingly accelerated pace over the years because of this phenomenon.
Because accelerated growth was not seen in other tree species like oak and pine, scientists admit they will have to further investigate the issue. Similarly, drier regions where the trees were found did not experience the same rapid growth rates as those found in the wetter regions.
Comments by Mike Adams, the Health Ranger
An interesting side effect of increased carbon emissions by human activity is that
plants will grow more quickly. CO2 is to plants as oxygen is to humans, so the more
CO2 is in the atmosphere, the more quickly many plants can grow.
Of course, plants produce oxygen as the "waste" product of their respiration, and that's a poison to other plants, so there's a natural balancing effect that keeps oxygen and CO2 levels in balance over the long haul.
This is why greenhouse gases are called "greenhouse gases", by the way -- because they turn the planet into a really effective greenhouse where
plants grow like crazy. Of course, the clear-cutting of rainforest in the Amazon (and elsewhere) kills any chance of those regions taking part in that accelerated plant growth. Even in a high-CO2 environment, human beings can destroy plant life with bulldozers.
It's interesting that plants and humans breathe the same air but extract very different chemical elements from it: Humans need oxygen while plants need
carbon dioxide. For both species to survive, the air needs to contain both chemicals in balance. Currently, the oxygen content of the air is roughly around 20% (and falling).
Sources for this story include:http://www.eurekalert.org/pub_releases/2009-12/uow-ggc120109.php
About the author: Mike Adams is an award-winning journalist and holistic nutritionist with a strong interest in personal health, the environment and the power of nature to help us all heal He has authored and published thousands of articles, interviews, consumers guides, and books on topics like health and the environment, and he has published numerous courses on preparedness and survival, including financial preparedness, emergency food supplies, urban survival and tactical self-defense. Adams is a trusted, independent journalist who receives no money or promotional fees whatsoever to write about other companies' products. In 2010, Adams co-founded NaturalNews.com, a natural health video sharing site that has now grown in popularity. He also launched an online retailer of environmentally-friendly products (BetterLifeGoods.com) and uses a portion of its profits to help fund non-profit endeavors. He's also the founder and CEO of a well known email mail merge software developer whose software, 'Email Marketing Director,' currently runs the NaturalNews email subscriptions. Adams volunteers his time to serve as the executive director of the Consumer Wellness Center, a 501(c)3 non-profit organization, and pursues hobbies such as martial arts, Capoeira, nature macrophotography and organic gardening. He's also author a large number of health books offered by Truth Publishing and is the creator of numerous reference website including NaturalPedia.com and the free downloadable Honest Food Guide. His websites also include the free reference sites HerbReference.com and HealingFoodReference.com. Adams believes in free speech, free access to nutritional supplements and the innate healing ability of the human body. Known as the 'Health Ranger,' Adams' personal health statistics and mission statements are located at www.HealthRanger.org
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Monday, December 21, 2009
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