Showing posts with label green environment. Show all posts
Showing posts with label green environment. Show all posts

Tuesday, April 9, 2013

Another Breakthrough in Hydrogen Energy Challenges Fossil Fuel Dominance



Alex Pietrowski, Staff Writer
Waking Times

Researchers at Virginia Tech have developed a new process that extracts large quantities of hydrogen gas from plants in a renewable and eco-friendly way, offering us another potential alternative to ending our dependence on fossil fuels.

After 7 years of research, Y.H. Percival Zhang, an associate professor at the College of Agriculture and Life Sciences and the College of Engineering at Virginia Tech, and his team have developed a new method of using customized enzymes to produce high quantities of hydrogen out of xylose, a simple sugar present in plants.
Zhang and his team have succeeded in using xylose, the most abundant simple plant sugar, to produce a large quantity of hydrogen that previously was attainable only in theory. Zhang’s method can be performed using any source of biomass.
This new environmentally friendly method of producing hydrogen utilizes renewable natural resources, releases almost no zero greenhouse gasses, and does not require costly or heavy metals. Previous methods to produce hydrogen are expensive and create greenhouse gases. [Science Daily]
Hydrogen fuel has the potential to dramatically revolutionize the automobile market and reduce our dependence on fossil fuels. Vehicle manufacturers are already developing cars that run on hydrogen fuel cells, which do not produce as many pollutants as regular gasoline cars. Currently in the US, the transportation sector produces 82% of total CO2 emissions in the country.

EIA estimates that U.S. gasoline and diesel fuel consumption for transportation in 2011 resulted in the emission of about 1,089 and 430 million metric tons of CO2 respectively, for a total of 1,519 million metric tons of CO2. This total was equivalent to 82% of total CO2 emissions by the U.S. transportation sector and 28% of total U.S. energy-related CO2 emissions.
Source: U.S. Energy Information Administration, March 28, 2012
Zhang’s method of hydrogen production will need to find its way into commercial markets, which could happen in about 3 years, before any significant impact on the alternative energy market is possible. Even though Zhang’s process addresses the previous obstacles to hydrogen gas production, including high process costs, greenhouse gas emissions, and low quality of the end product, large investment in technology development and infrastructure would still be necessary to transition to hydrogen fuel cars.
“The potential for profit and environmental benefits are why so many automobile, oil, and energy companies are working on hydrogen fuel cell vehicles as the transportation of the future,” Zhang said. “Many people believe we will enter the hydrogen economy soon, with a market capacity of at least $1 trillion in the United States alone.”
“It really doesn’t make sense to use non-renewable natural resources to produce hydrogen,” Zhang said. “We think this discovery is a game-changer in the world of alternative energy.” [Science Daily]
A future where renewable energy replaces energy production using fossil fuels is inevitable. Some have gone as far as to illustrate that we have the potential to make this shift in less than 20 years, for example, Mark Z. Jacobson of Stanford University and Mark A. Delucchi of the University of California, published a study that shows it is possible to power New York State using only renewable sources by 2030.

Nevertheless, governments’ support of traditional energy production via fossil fuel subsidies, which amount to $1.9 trillion per year, as reported by the International Monetary Fund, is one of the main obstacles to the growth of alternative energy sources. The IMF estimates that $480 billion of the total is comprised of direct subsidies, which have the goal of making petroleum products more affordable.
A fossil fuel subsidy is any government action that lowers the cost of fossil fuel energy production, raises the price received by energy producers or lowers the price paid by energy consumers. There are a lot of activities under this simple definition—tax breaks and giveaways, but also loans at favorable rates, price controls, purchase requirements and a whole lot of other things. [Oil Change International]
The remaining $1.4 trillion are comprised of “externalities”: “the effects of energy consumption on global warming; on public health through the adverse effects on local pollution; on traffic congestion and accidents; and on road damage.” (IMF) Current energy policies are established in such a way that fossil fuel companies do not pay for any of these “externalities”, and thus leaving these industry costs to be indirectly subsidized by governments.

Here are some more statistics about the energy subsidies in the US:
“…between 1994 and 2009 the U.S. oil and gas industries received a cumulative $446.96 billion in subsidies, compared to just $5.93 billion given to renewables in those years. (The nuclear industry, by the way.  received $185 billion in federal subsidies between 1947 and 1999.)”
Source: Forbes
With such policies in place, heavily influenced by large multi-billion dollar companies with strong government ties, is a rapid change towards renewable energy even possible? Are we ready to challenge our policies to shift financial support from harmful and damaging energy production to renewable technologies, and change our own behaviors to create a cohesive movement towards a cleaner and safer planet?

If breakthroughs in technology can offer salient alternatives to the economic stranglehood fossil fuels has on our economy, then we may realize a future of clean energy. One thing is certain, however, without practical alternatives there is no chance of changing the momentum behind extraction based energy toward clean energy.
About the Author
Alex Pietrowski is an artist and writer concerned with preserving good health and the basic freedom to enjoy a healthy lifestyle. He is a staff writer for WakingTimes.com and an avid student of Yoga and life.

Sources:
http://www.sciencedaily.com/releases/2013/04/130403104104.htm
http://en.wikipedia.org/wiki/Hydrogen_vehicle
http://www.eia.gov/tools/faqs/faq.cfm?id=23&t=10
http://priceofoil.org/fossil-fuel-subsidies/
http://grist.org/climate-energy/can-we-shift-to-renewable-energy-yes-as-to-how/
http://www.forbes.com/sites/ciocentral/2013/02/14/government-subsidies-silent-killer-of-renewable-energy/
http://www.imf.org/external/np/speeches/2013/032713.htm

This article is offered under Creative Commons license. It’s okay to republish it anywhere as long as attribution bio is included and all links remain intact.

Monday, April 8, 2013

Is Hemp A Miracle Plant That Can Save The World?

 

 


By Jeffrey Green, Guest Writer
Waking Times

Hemp is perhaps the answer to most problems in the world. Ambitious, yes.  An exaggeration, no.

If grown extensively, its diverse uses can be of significant value to the environment, the economy, world hunger, personal health, and so much more.

For the environment, hemp can reduce deforestation, pesticide use, provide a sustainable biofuel, and replace GMO cotton among other benefits. It grows like a weed without the need for pesticides or heavy fertilizers.

Hemp does just about anything wood can do and it only takes 6 months to renew, not 20 years. It can be used to make paper, to build homes with, and as fuel for fire.

Hemp clothing is far more durable than cotton, which is an industry still operating a form of slavery from cultivation to production. GMO cotton has led to indentured servitude for Indian farmers where failed crops and debt result in shockingly high suicide rates. Hemp is simply a better material for clothing.

The oil in the hemp seed can be made into biodiesel just like any vegetable oil. Most arguments against biofuels are that their crops take up too much valuable farm land that should be used for food, and it takes more energy than it gives back when all things are considered (fertilizer, pesticides, planting and harvesting machinery, refining).

With hemp, biofuel is merely a bi-product of this crop, not it’s main use. The fiber of the plant is still an extremely valuable commodity. Whereas corn ethanol needs a lot of land with tons of intensive chemicals, and the process of turning corn into ethanol is then a net energy loss.

As today’s economy falters due to a variety of systematic problems, the world is in desperate need of a new industry. Worldwide hemp legalization and promotion would lead to a revolution in nearly all major industries. Entrepreneurs would have a field day with textiles, plastics, body care, construction, etc.

Industrial hemp’s female counterpart, marijuana, provides effective natural medicine for a number of ailments. Cannabis is one of mankind’s oldest recorded healing plants. As its prohibition lessens, modern man is only just beginning to discover the exciting medical uses of marijuana, which are provably vast already.

Cannabis can ease pain, depression, anxiety, sleep disorders, PTSD, arthritis, and has even been proven to have anti-cancerous properties. When eaten or vaporized, cannabis is entirely beneficial as a natural alternative because any unwanted tars are not inhaled. Furthermore, juicing raw cannabis has many benefits and zero psychoactive effects.

Hemp alone is powerful enough to be a game changer for the environment and for human society as a whole. It’s time to unleash the hemp seed.

Please watch the very entertaining video about how hemp can save the world and share this information with everyone you know.



 

About the Author:


Jeffrey Green is a self-sufficiency practitioner and hemp legalization activist. He writes forNaturalBlaze.com. Follow at Facebook. This article originally appeared at Activist Post.

This article is offered under Creative Commons license. It’s okay to republish it anywhere as long as attribution bio is included and all links remain intact.

Friday, December 28, 2012

How to Start Your Own Garden Almost Free

How to Start Your Own Garden Almost Free

By Alina NiemiKitchen Garden International

Yes, the economy is in bad shape, I know.  But don’t use that as an excuse for not gardening.  You can take the expensive route and buy everything you need to get started, or you can be resourceful and end up with something that works, for little to no money.  Here are some tips to get you started.

The trellises in the photo above are bed frames, railings, and other items collected from the side of the road. Other people's trash is your free garden!

Contain It
The first thing you need is something to grow in.  Start with the containers your food comes in.  Asceptic boxes, plastic tubs, and plastic bottles, all of which you would otherwise just discard, can all be used as containers to start seeds in.  Add some holes for drainage, some potting mix, and you’re ready to go.

You can also use newspaper pots.  Strips of newspaper wrapped around a cylinder, with the bottoms folded under, aren’t sturdy enough for the long term, but they can be used to start seeds in.  When you transplant them, put the whole thing, pot and all, into the ground or larger container.

Feed It
Fertilizer can be had in the form of compost, which is basically all your waste fruit and vegetable scraps, eggs shells, and some paper.  Vermicomposting, or composting with worms, can even be done in a bin inside your house–tucked under your kitchen sink, for example.

You will reduce the amount of garbage that goes into landfills.  You will get free fertilizer.  You will give life to worms (if you vermicompost).  And you won’t be forced to use chemical-filled soil mixes and fertilizers that are sold in garden and home centers, which may have a detrimental effect on our environment (not to mention your wallet).

Water It
The cheapest way to obtain water for your plants is to collect rainwater.  You can use any container you like.  (Avoid containers that have had toxic or cleaning chemicals in them.)  I’d suggest covering them with screening to prevent mosquito infestation, especially if you’re in an area where mosquito-borne illnesses, such as encephalitis or Dengue Fever, can be a problem.

You can often find discarded 5-gallon buckets from restaurants.  Be sure to clean them out thoroughly before you use them.

Reproduce It
Use what you buy from the grocery store to start more plants. Lemongrass and green onions are easy to grow and will provide you with leaves and stalks both.  Lemongrass leaves make a delicious hot or iced tea.  Use green onions in your salads and sandwiches.

Fresh herbs are commonly sold in grocery stores these days.  Mint and sometimes basil can be started by placing a sprig in a jar of room-temperature water until roots sprout.  Change the water daily and transplant as soon as possible, to prevent rotting.

Trade It
Become a part of an online gardening forum, a local gardening club, or something similar.  Almost all of them have formal or informal seed swapping opportunities.  Trade something you have a lot of, or seeds for something you’ve grown but don’t like, for something new.  It’s also a great way to trade varieties that don’t do well in your climate, for something that didn’t work for someone else in theirs.

Train It
Use found objects as trellises for climbing or sprawling plants, such as pole beans, cucumbers, and tomatoes.  The back of our little garden plot is lined with bed frames and rails, metal shelving supports, and other things.  All of them were picked up from curbside, thrown out by others.  Even if the metal rusts, it will last several years before it needs to be replaced.

So you see, you can be a cheapskate if you want or need to in your gardening efforts.  But be sure to be generous with your harvest, and share it with your neighbors, friends, and others.  I’ve fed arugula to electric company workers, herbs to neighbors, and cholesterol spinach to practically anyone who passes (since it grows almost without any help from me in our area.)

You’ll be opening their eyes to the pleasures of gardening, introducing them to new taste sensations, and maybe making them a little healthier in the process.  And that way, they might not complain about the toilet tanks, truck tires, and bed frames in your yard that you are using to grow everything with!

I added a post to my blog if you want to see how to use toilet tanks as containers for your garden. They already come with drainage holes, they are rectangular, so you can stack them next to each other, saving space.  And they are deep, so you can grow carrots and daikon in them, too.  See using toilet tanks for container gardening

About the Author
Alina Niemi is a gardener, foodie, teacher, writer, illustrator, and traveler. She is the author of The New Scoop: Recipes for Dairy-Free, Vegan Ice Cream in Unusual Flavors
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