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Global Warming A Problem

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Biofuels can be described as any fuel that is derived from biomass ie living organisms or their metabolic by-products. For example, crops such as corn and dung from living animals



Although there is still somewhat of a scientific debate going on over the advantages of biofuels, it is thought that the main advantage over fossil fuels (coal,oil and gas), is that the burning of biofuels to release energy does not cause a net increase of CO2 levels in the atmosphere. This is because the source of the biofuel, crops for example, have already taken a corresponding amount of CO2 out from the atmosphere during their growth cycle when they photosynthesise. When this occurs, plants/crops release oxygen and retain the carbon to use as energy.

The carbon is then released when the crop is eventually burnt in order to release its energy. As long as new crops are planted in place of the ones that are burnt, there will be no overall increase in the amount of CO2 released into the atmosphere. So, whilst crop based biofuels don't reduce the amount of CO2 in the atmosphere, they are thought to be more or less carbon neutral.

The difference with fossil fuel deposits such as coal is that the coal deposits have been formed in the earth over millions of years and are therefore considered to be energy deposits rather than part of the energy cycle. The burning of fossil fuels on a scale required to satisfy mankind's energy needs, over a relatively short period of time, hundreds of years as opposed to the millions of years it has taken the deposits to form, means that the burning of such fuels, adds considerably to the levels of CO2 in the atmosphere. This in turn adds to the greenhouse gases already present in our atmosphere, and contributes to the warming of the Earth's climate.

Forms of biofuel

Biofuels can either be in solid form or liquid form.

Solid biofuels such as wood or even manure (dried cow dung) can be burnt to heat water which can then be used to power a turbine, which can generate electricity. Liquid biofuels, such as ethanol can be used as a substitute or be mixed with traditional fuels in automobiles.

Biofuel uses

The major benefit however probably comes from liquid biofuel, for the creation of Ethanol or biodiesel. Ethanol, a substitute for fossil fuel based petrol, and biodiesel, which is just diesel made with crops in place of oil which is a replacement for traditional diesel fuel in diesel motor vehicles. Whilst diesel cars are more fuel efficient than their petrol counterparts, biodiesel vehicles produce even less carbon dioxide. Neither are as efficient however as vehicles running on mostly ethanol-based fuels.

To run on fuel which has a greater than 10% mix of ethanol however, vehicles need a flexi-fuel modified engine.

The USA grows mainly corn crop, which can be converted to ethanol. In Brazil sugar cane is grown, and in the UK rapeseed is used.

Brazil is at the forefront of biofuel use, using it as a fuel in automobiles which have the flex-fuel engines needed to be able to run on pure ethanol.

Environmentally friendly or not?

Despite the benefits of using biofuels, there is a drawback however, which is the amount of land required to grow the crops necessary for the biofuel in the first place. There are already concerns that vast tracts of tropical rainforest like the Amazon in Brazil, are being cleared to plant sugar cane and other crops for biofuel production. Another problem is the cost of corn, an essential ingredient for basic food is also escalating causing further problems as the cost of certain products become unaffordable to many. It would surely be counter productive if such a situation were to develop where the CO2 absorbing tropical rainforests were being destroyed to plant crops to turn into environmentally friendly biofuels!

There is also a concern that as a by-product of growing the corn or other crop used for biofuel production environmental damage is caused by the fossil fuelled tractors, processes, fertilisers etc used in the growing process, meaning that they are not truly carbon neutral at all.

Recent research indicates that prairie grasses actually take out more carbon dioxide from the atmosphere during their growth than they emit when being converted to biofuel, meaning that they may well be truly carbon neutral.

It would seem more research is needed into biofuel production and use, but if grown responsibly, i.e not on land cleared of rainforest, a benefit may well be had for the environment by their use.

Copyright (c) 2008 Simon Rosser
Global Warming A Problem
This business about global warming is actually starting to look like a nightmare for humanity. It's becoming more a ghastly proposal, not an "inconvenient truth."

Global warming is occurring at even a more accelerated pace than what was originally predicted, many who are expert sources on this issue posit. Most are still a bit skeptical of the Global Warming issue. It's commonplace for the press- listening and reading public to be cynical and even critical today. It's not only that opposing views of any issue are part of the mainstream "Op-Ed" consciousness; it's just good business and idea salesmanship to keep everything murky, dusty and convoluted.

The news - especially science news - is so hazy and muddled with political and religious sources traditionally centered in spin, connotation, even stigma that trying to believe in anything today is very hard. In a society that cannot decide if a little white wine each day can cure cancer or lead to alcoholism, finding a Gregorian "middle ground" is tough.

And because science is always based in theory, it's even more confusing to sort out good theory from bad; and just the way scientific theory is designed and argued, nothing is really set in stone and is not fact, per se, rather, scientific theory is just what its name implies -- it is theory. Considering much of the fingerprint and harbinger evidences surrounding global warming, however; this theory becomes more denotatively arguable and convincing with each new day.

Most people stay convicted to their beliefs even long after their beliefs have been denigrated or sometimes even proven totally false. In the case of global warming, ever increasing scientific theory is an ongoing constant, though, and this leads to a very unsettling future forecast for Mother Earth, the human race and really, most types of species that reside here. Validation surrounding the global warming theory is so stacked it's alarming.

One such truth: The rapid buildup of killer carbon dioxide in large lakes like Nyos in Africa (which saw an explosion kill about 1,700 people) creates stern consternation by those who are even slightly to the side of "green." If it happened to Lake Nyos, what's in store for Lake Superior, Erie, Huron or the "thousand lakes of Wisconsin, Minnesota, Missouri or Finland? What's in it for Loch Ness in Scotland? How's about the Mississippi and Nile rivers? Can we include about every body of water here if our waters continue heating? Carbon dioxide buildup in large lakes is not the stuff impossible fictions are made of - this is a stark reality - and global warming is the root of the problem, scientists argue.

Just to reiterate and try to ring the alarm a bit louder: It's an enigma why people aren't up in arms about this - and if the implications behind global warming are true, it might indeed be the biggest crisis humankind has ever faced.

Scientists say the dinosaurs went extinct due to climate changes brought on by a comet hitting the earth 65 million years ago. The estimated 6-mile-wide comet slammed into the Mexican Yucatan Peninsula region "leaving a hole 112 miles wide. It wiped out the dinosaurs and more than 75 percent of the species on the planet, throwing up a cloud of dust that blocked the sun for months, killing off plants at the base of the food chain and causing ecosystems to collapse worldwide; it was a global environmental catastrophe".

Are we going to go extinct because of our factories' creation of plastic ornaments on lawns? Is the Earth heading for a quick demise because SUVs and trucks are two of the planets biggest polluters? Tables, chairs and houses are taking the place of rain forests; and through the rapid buildup of developing nations' industrial revolutions, our world has been kidnapped - and there's little that can be done to stop global warming - many who are very familiar with this issue contend.

Even the most drastic actions - which entail a global greening in very strict, drastic and complete uniformity - may not be enough to fend off the inevitable greenhouse effect that is predicted.

As things continue to unfold concerning global warming, however, a lot of us are seeing that all this fretting over the world's environment isn't a political trick or a smoke and mirrors routine. No. Our atmosphere is becoming more like a microwave and we're rotating around on the big dish inside.

I'd really like to see proof to the contrary but everything coming out lately points to making valid the global warming theory. To be honest, I'm getting quite upset over the spicy forecasting that's being done these days. With the threat of the equatorial waters getting about as hot as a chili pepper over time, what's there to even plan in the mid-century we're living within?

The Intergovernmental Panel on Climate Change has found that this warming is due to anthropogenic factors (mankind is cooking things up here). The Intergovernmental Panel's Fourth Assessment Report, completed in 2007, found that even if temperatures stabilize, the world is expected to heat up during most of this millennium. The sea level has risen 4 to 10 inches (10-25 cm) on a global scale over the past 100 years. "With additional warming, sea level is projected to rise from half a foot to 3 feet (15-92 cm) more during the next 100 years.

On average, 50 to 100 feet (15-30 meters) of beach are lost for every foot (0.3 meters) of sea-level rise. Local land subsidence (sinking) and/or uplift due to geologic forces and coastal development will also affect the rate of coastal land loss. There seems to be a lack of real, viable solutions for keeping Mother Earth blue and green and not gray and black.
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About Author
Both Simon Rosser & James Nash are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.

Simon Rosser has sinced written about articles on various topics from Global Warming, Legal Matters. A lawyer by trade,I felt inspired to write a book entitled The A-Z of Global Warming, published in May 2008, after viewing Al Gore's documentary, An Inconvenient Truth in Nov 2006. Based on the most upto date scientific information, this Biofuel extract g. Simon Rosser's top article generates over 14800 views. Bookmark Simon Rosser to your Favourites.

James Nash has sinced written about articles on various topics from Environment, Painting and Environment. James Nash is a climate scientist with Greatest Planet (http://www.greatestplanet.org). Greatest Planet is a non-profit environmental organization specialising in carb. James Nash's top article generates over 368000 views. Bookmark James Nash to your Favourites.
Design Of Pulse Oximeters
Because of it is pouch size, the broader variety of the patients can also be productively monitor, without the important time lost
 
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