Archive for February, 2012
Are Tsunami’s Caused by Global Warming ?
Are Tsunami’s Caused by Global Warming ?
Throughout the history of our planet it has endured a constantly changing climate. It endured an ice age and has also experienced long periods of heat. But over the last two hundred years, give or take, the temperature of our planet has been steadily increasing. This change in the climate on earth is known as global warming, and global warming is the direct result of the industrial revolution.
Because of the industrial revolution, people are constantly burning fossil fuels such as oil and coal. But by burning these fuels dangerous greenhouse gases like carbon dioxide (CO2) are then released into the earth’s atmosphere. These gases block heat rising from the earth from being able to escape into space. The same basic function that glass panels on greenhouses have, hence the name. Our burning of fossil fuels causes more than three quarters of all carbon dioxide emissions. Power plants and other stationary sources contribute more than half of that amount.
Along with increasing CO2 emissions, deforestation is on the increase as well. This is disastrous, because trees recycle CO2 and release oxygen back into the atmosphere. Because of the rise in deforestation levels the fossil fuels we burn are seriously jeopardizing our planet. We know that global warming is the cause of glaciers getting smaller and for the rise in sea levels. Plants and animals show clear and undeniable signs that they are affected in many different ways. Earth is experiencing longer seasons which results in rivers and lakes freezing later than usual and melting sooner. Without a doubt, global warming causes many changes and affects our planet in many ways but can it also cause a tsunami?
Nobody will ever forget the utter destruction, grief and loss left behind after the huge tsunami that hit parts of Asia on December 26th, 2004. Hundreds of thousands of people were killed, injured and traumatized. The areas it hit were left completely destroyed.
Generally speaking a tsunami is made up of a series of waves. More often than not the first one is the mildest. Prior to the arrival of the first wave, the shoreline recedes dramatically and often leaves the ocean floor exposed. They mostly occur where the water is shallow but they can also occur around coastal areas. In deep water a tsunami appears as a big wave and nothing more. In shallow water this is not the case. The wave can reach as high as one hundred metres, although, in all honesty, this is not at all common.
We know that tsunami’s can be caused by an earthquake, but this is not the only cause. They can also be caused through volcanic eruptions and landslides. Another cause is if a large amount of water is somehow displaced, such as when meteors happen to fall into large bodies of water. Tsunami’s are caused by events that can be, and are, affected by global warming, however global warming itself does not directly trigger the formation of a tsunami. Basically, it is an indirect cause.
One thing is certain, global warming is not a myth as some suggest. The planet is displaying clear signs that we dare not ignore.
For more global warming articles and daily news why not visit http://www.globalwarmingnewsblog.com – a site dedicated to information about climate change: effects, issues, causes, solutions, opinion and more.
England Tech news
Plastic Bags?
Bags hold an important place in our lives. They are sometimes referred to as the best personal carriers. They are made of various stuffs like cotton, synthetic, leather and so. But when it comes to general usage like for shopping, the names of two types of bags viz. plastic made and paper made bags come to our intellect. Both are fine, but the question is, which one is the best suited to our requirements. Lets discuss the peculiarities related with the two.
You might be thinking that paper bags are not as durable as those made of plastic. Also, we see that the latter are more commonly used than the former one. But, do you know plastic is a stuff which is really hazardous to the environment. It takes thousands of year to decompose. If burnt, it emits poisonous gases which again pollutes the environment. If buried in the ground, it makes the soil infertile. If thrown in the sea, it pollutes the sea water and proves to be a threat for the life of the sea creatures. One can imagine, how hazardous is plastic to our planet.
This perilous nature of plastic had forced the governments of many cities of the world to put a ban on the use of poly-bags, which are a major source of plastic pollution. Few cities of the world in which these polythene carriers are either completely or partially banned include San Francisco, New York, Texas, Germany, Dhaka, China, Kenya and Ireland to name a few. Even the government of Delhi had issued guidelines against the use of polythene. However, later on the government changed its decision to completely ban the polythene, due to some reasons. Government suggested the manufacturers to set up the recycling units on the basis of “polluter pays principles”. But the government has not completely given up the plan to ban these polythene carriers, it is in the pipeline.
In this context, paper bags are the best option. No doubt, they are unconventional, but they are eco-friendly and easy to recycle. Nowadays, there are various types of paper made bags available in the market. They are not only good looking, but also have ample of space to carry goods and are quite durable. The handmade paper bags available nowadays are designed to suit specific requirements which include carrying gifts, carrying wine, shopping etc. There is a separate bag to serve each purpose. Although, multipurpose bags are also made from paper. They are proving to be the best substitute for plastic or polythene carriers in the modern context.
Now, as we have told you every significant fact related to plastic and paper bags, It’s upon you which one to choose. The hazardous and non-disposable polythene, or the environment friendly and elegant paper bags.
For more information on paper bags, paper baskets, miscellaneous paper products and other handicraft items, you may visit the following sites:
http://www.handmade-paper-products.com/
http://online-handicrafts-center.blogspot.com/
Gasification Sees a New Dawn and How it Will Benefit Us All
Gasification Sees a New Dawn and How it Will Benefit Us All
If you search for gasification and terms like “wood stove†on video sharing sites these days you will see demonstrations of wood being burnt in little stoves which seem to something almost miraculous and quite different from our idea of wood as a fuel. These little boilers light rapidly, produce no detectable smoke after the initial lighting and firing, and burn very hot.
So what is the technique which is being used, and how might it help us all in weaning society off fossil fuels?
What you have seen is a method of gasification. It differs from combustion in that it uses just 20% to 30% of the air or oxygen necessary for complete fuel combustion. During gasification, the amount of air supplied to the gasifier is carefully controlled with the effect that only a small part of the fuel burns completely. Trials of this process have illustrated that up to 70% of the energy value of the fue used can be recovered as what is known as synthesis gas, or syngas. This producer gas can also be used for various applications similar to natural gas.
This is a part of the magic, and not one really shown in the YouTube type videos, but it makes this method even more useful. This is due to the fact that syngas can be put to useful work, in both drying the feed fuel prior to gasification and after collection and storage it can be used as a fossil fuel replacement, and renewable energy source. When a gasification plant also includes Combined Heat and Power (CHP) and/or electricity export from the site, the gains are even more impressive.
Gasification in addition promises to be the most efficient long-term solution for capturing carbon while utilizing these valuable feedstocks, and storing the CO2 for very long priods, to reduce or halt global warming.
Gasification of wood and wood-type residues and waste in fixed bed or fluidised bed gasifiers with subsequent burning of the gas for heat production is has become state of the art with designers of thes systems working hard to gain the absolute maximum efficiency out of these systems.
These wood gasifiers which are located primarily in the Scandinavian countries are used almost entirely for space heating heat generation. Gasification of biomass is the renewable fuel system preferred by many, and can be defined as the thermal conversion of solid biomass to gaseous fuel.
Gasification has been around for over a hundred years, but the benefits of biochar are only now being discovered. Furthermore, it is still a wide-open field.
Before electric lighting was available in cities there were street lamps fuelled by gasified coal. It is easy to forget that the process has been reliably used on a commercial scale worldwide for more than 50 years in the refining, fertilizer, and chemical industries, and for more than 35 years in the electric power industry. More than 75 companies involved in the development, licensing, and use of these technologies as well as engineering, construction, equipment manufacturing and production of synthesis gas by gasification from coal, petroleum coke, heavy oils and other hydrocarbons.
Gasification has been proven to be a viable technology for CO2 capture and reducing SOx, NOx, particulate matter, and mercury emissions from coal and petcoke-fired power plants, synthetic fuels production, and chemical facilities.
Plants in this category have been capturing carbon dioxide for several decades in chemical plants in China and the United States. It also has potential contributions to make to both transportation and electrical power energy markets. With ongoing concerns about the price and availability of oil, populous countries like the U.S. gasification has proven to be in high demand and quite successful. However, it can also be used in conjunction with gas engines and gas turbines to obtain a higher conversion efficiency than conventional fossil-fuel electric power generation. Gasification can help meet renewable energy targets, address concerns about global warming, and contribute to meeting global environmental targets.
Steve has built a great web site where there is a lot more information about gasification. This is a hot subject indeed for this technology which has become an essential read for all those in alternative energy and interested in taking action to reduce the impact of climate change.
Copenhagen’s Spring – Scientists Ask For Higher CO2 Cuts
Copenhagen’s Spring – Scientists Ask For Higher CO2 Cuts
The International Scientific Congress on Climate Change was held in Copenhagen between 10th to 12th March and organised by the International Alliance of Research Universities (IARU): the conclusions will be published into a full synthesis report next June. Almost 1,600 scientific contributions of researchers from over 70 countries have been received, and more than 2,500 delegates attended the event.
Connie Hedegaard, Minister of Climate & Energy of Denmark said that we have “to avoid the unmanageable and manage the unavoidable” and she pointed to their example: this European country has become a net energy exporter in 30 years, creating a green growth as a stable solution of the 70s oil crisis. The messages of the congress are various. The risk that current trends of the climatic system will accelerate has a more defined and significant meaning: more probable abrupt and irreversible shifts, and we are already above the worst scenarios published by the Intergovernmental Panel on Climate Change (IPCC) in 2001. Thus the big problem is trying to at least slow down these trends if not reverse them. The experts tell us that fast regional and global mitigation strategies are needed and that the more we wait the more expensive and ambitious actions will have to be taken in the future. The fact that scientists have come to the point of saying that “Inaction is Inexcusable” means also that people who studied relentlessly for decades are frustrated by the inaction of governments, businesses and people: it is understandable given that their work has not been considered and used enough, if not at all, up to now. They are speaking louder and clearer now. The different roles of politicians and scientists have to be combined. It is time for leaders to rely firmly on science as a basis for tough and unavoidable decisions. A “societal transformation” is being asked for by a wide group of the most intelligent people on the planet including diffusion of sustainable behaviours, innovative leadership, removal of subsidies and reduction of “vested interests”. These are all very explicit messages to politicians and public alike: there is a lot of work to do between now and next December’s COP15.
In the final debate the Danish Prime Minister, Anders Fogh Rasmussen, summarised the six messages given by scientists as 6 keywords: Urgency (of the climate change challenge), Direction (long term target to be defined), Action (short term targets to be set), Fairness (to the poorest and most vulnerable), Opportunity (to originate large benefits), Governance (creation of a new global multilateral era). He stated firmly that “Business As Usual is dead” and asked his colleagues to follow Obama’s call for a Green New Deal, already asked for by public opinion and by many political parties in the world.
After the final debate with the panel of scientists an impatient Rasmussen asked for clear words on the CO2 emission target to be set in the new treaty. Prof. Daniel Kammen, Obama’s Senior Policy Advisor, stated that an entire new industrial revolution is needed to cut 1990′s CO2 emissions by 80% in 2050 and Prof. Stefan Rahmstorf agreed on this point. The feeling was that the other panelists didn’t mind… At this point the Prime Minister concluded that the ambition for COP15 can be this -80% long-term objective following the precautionary principle to avoid worse impacts (than the ones presented in 2007 IPCC report) already hypothesized by new works. Overall a more direct communication between scientists and policy makers took place in this huge meeting: now it’s time for delegations to study and prepare the ground for brave steps forward to be made by the international community in Copenhagen’s crucial Conference of the Parties #15. Will we be able to navigate better our “ship” in the solar system during the over 200 rotations it will make before then?
Written by Luca Marazzi on behalf of Responding to Climate Change.
For further information on Climate Change please visit the Responding to Climate Change website –
http://www.rtcc.org
*Next event: Copenhagen, 24-26 May 2009. World Business Summit on Climate Change
Our Family’s: The 3 R’s – Our Commitment to Do More
Our Family’s: The 3 R’s – Our Commitment to Do More
So How You Do’ing? In the spirit of recycling, I thought I would use those famous words from Friends character Joey. I have shared with you in other articles ideas that my family are using to cut our carbon footprint on this precious Earth that we call home.
Reducing is always a challenge, because it goes in the face of our societal values of having more and doing more, but it is the highest form of recycling.
Re-using is something that has been natural for me through out my life. It may be challenging at times to creatively transform old household items into new uses, but this has become one of the staples of our family’s efforts to be more environmentally friendly…and save money.
Recycling has become the catch phrase for the 3 R’s, but is strictly speaking altering one thing into another. It is important that we recycle as much as we possibly can, because making consumables from recycled goods is always cheaper and better for the environment than making them from raw materials. But we should recognise too that recycling should only be used after we have reduced and re-used. For our children and their futures, we must use all the arsenal of tools embodied in the 3 R’s: reducing wherever we can, re-using everything that we possibly can, and recycling every item that our councils and recycling centres will accept.
Today I am wanted to look at those things that my family could do better:
1) Reducing excess packaging. I think this might be the most challenging to tackle; partly because a great deal of it is beyond our control. We are, I admit, large consumers of electronics (blame techie husband). Have you ever noticed how much packaging goes into one tiny piece of plastic? A memory stick that is one inch by two will most often come in a plastic (non-recyclable) package with a large cardboard inset and an information packet. I recognise that this is an anti-theft device, but aren’t there other alternatives? What about putting such items behind the counter? The other side of that is that the packaging contributes to the cost of that piece of plastic and metal. Of course, this is an issue that will require a concreted effort from consumer and most likely government intervention to address. What I can do for now is to choose to purchase my fruit and vegetables loose. I am also hoping this will cut down on both spending and waste by purchasing only what we need.
2) I am going to remember to use those little switches on the power plugs. As I mentioned, being American we do not have such things. It has been hard for me change a lifetime of habits. But with my husband’s help, I am going to use these magic little buttons more often.
3) We are going to replace all batteries with rechargeable ones. About half of our batteries are rechargeable; mostly the ones in our keyboards and mousse. But over the coming weeks, we will replace all batteries with rechargeable ones…since these are particularly toxic waste in our landfills.
4) I am going to use less water when washing dishes. I have this habit of running the water to rinse dishes as I go. The new plan is to wash everything and sit it on the counter until I am done. Then use the same pan to rinse the dishes in cold water.
5) I am going to have a spring clean out. I may be doing pretty well at re-using but I could help others to do better by donating all the stuff I am not using to Freecycle, the Islington Swap Xchange, or my local Mind shop. This will make my husband very happy as he has been complaining about my daughter’s toys for a while now.
So what can you do better? Remember though this is not about being perfect, but the little things that we can realistically do and continue to do. The things that may seem so small that you don’t think they will make a difference: things that if we all did would make a huge difference. I invite you all to share your list with me.
Terri O’Neale is the mother of six; ranging in age from 3 to 22. She has been both a working and stay-at-home mother at various times in her life. She was also a single mother for almost five years, before re-marrying the love of her life at the age of forty. Obviously, she has a life-time of training in raising a family on a tight budget. In addition to these real life experiences, she possesses a bachelors degree in health education and a minored in environmental management in her masters programme.
Terri feels strongly that this is one of the most challenging times in history for the family, but she also believes that families with the will and resolve to address the pressing issues of saving money, becoming greener, leading healthier lifestyles and spending more time with one another can endure these challenging times and come out victorious in the end.
Through Frugal Family articles, blogs, videos and social networking, she helps modern families rediscover some lost art forms such as cooking, sewing, and gardening. The goal is not to go back in time or become fanatical, but to help all families find simple and effective ways that fit into their lifestyle to make moderate changes with huge impacts. For more information, check out her blog http://frugalfam.wordpress.com/.
Green Racing Car
Recycle, Reuse and Reduce
Does you family recycle aluminum cans? Do they do it to get a little extra cash or because it is the responsible thing to do? How much do they, and you, know about what happens to the can after the soda is gone? Here is a quick true and false quiz on recycling. It will only take 2 or 3 minutes to find out what you know and what you need to know about the importance of families recycling.
Circle the answer for each of the 6 questions. Now test the other members of the family.
1. In the time it takes you to read this question, 50,000 12-ounce aluminum cans are made.
True or False
2. When you recycle one aluminum can you save enough energy to equal a half gallon of gasoline?
True or False
3. There is no limit to the amount of times aluminum can be recycled.
True or False
4. We use over 80,000,000,000 (billion!) cans a year.
True or False
5. At one time, aluminum was more valuable than gold.
True or False
6. More aluminum goes into beverage cans than any other product.
True or False
Surprise! All of the answers are true.
Did you know that for every $10 spent buying things $1 or 10% goes for packaging that is thrown away. Packaging, and that includes aluminum cans, represents 65% of household trash. Wow. What a waste of money and resources. We can do better than that.
Our family is making a special effort to Recycle, Reuse and Reduce. Will you join us in helping to protecting our earth and natural resources? Maybe your family could put up a special box to save aluminum cans for the recycling center.
(c) Judy H. Wright http://www.ArtichokePress.com You have permission to reprint this article in your blog, ezine or offline magazine as long as you keep the content and contact information intact. Thank You.
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