Water

Natural Desalination

nat desalinization

Natural desalination is one of five proposed solutions to combat California's water shortage. This method provides endless 100% nature driven desalination at about $20 an acre foot operating cost. It is powered by natural osmotic pressure for reverse osmosis, then gravity conveyance back to shore, where wave power lifts the fresh clean water to the surface and up a nearby hill to again use gravity conveyance for use. All processes have been tested for zero CO2, zero brine and zero entrainment of aquatic life.

Please join us for this special EGG sponsored presentation.

 

 

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Affordable Portable Desalinization Alternatives

Presentation, Discussion, and Exploration by Beverly Turner  

Current commercialized de-salinization solutions are expensive and subject to many political roadblocks slowing down implementation. Beverly will present some ideas on possible ways of creating more portable and affordable solutions using existing equipment that can be creatively modified to produce portable clean water. We will explore various possibilities and then discuss the feasability of creating working protoypes. Please bring your notebook for access to the internet.

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Are We Going To Cope With Ocean Acidification?

Are We Going To Cope With Ocean Acidification?

Bob Greene picA Presentation by Dr. Robert Greene This presentation recognizes that ocean acidification is an imminent threat to sea life, and indeed, our entire lives.  If we take a ‘business as usual’ approach, we may be too late in saving the oceans for our children and grandchildren.

First we will look at ocean acidification and its effects.  Then we will discuss the Carbon Cycle, i.e. how and how much generated CO2 is naturally stored in the atmosphere, gradually dissolved in the oceans, changing their chemistry (pH), and gradually sequestered on the ocean floor.  An analogy will be drawn with how the Oregon oyster farmers faced this issue but on a smaller scale.  Then, a first order estimate will be made as to how much energy will be needed to address this issue over what period of time.

Next we will posit “Where will we get this massive amount of carbon-free energy?”  To answer this, we will look at global energy demand through mid-century and what the contribution must be from each clean energy source to meet each share of this requirement.  Solar and wind alone will probably not meet this need.  Dr. Greene will review other energy sources, including ‘new nuclear’ and how they can make a major improvement in this picture.

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Grey Water Systems

grey water valveThe recent drought has prompted Governor Brown to enact mandatory water restrictions for the first time in the history of the state of California. With no end to the drought in sight and the level of the state’s reservoirs being at their lowest levels in decades, everyone will need to take steps to conserve this precious resource. Grey Water systems have recently been proposed as a method where home owners can help conserve water by using reclaimed water produced by laundry, sinks and bathtubs in non-potable applications such as irrigation or flushing toilets.

We will investigate why their time has come and how you can participate in conserving our most precious resource.

 

  • What are Grey Water Systems and what are the benefits of their use?
  • Why are Grey Water Systems becoming part of the water conservation discussion?
  • What are the concerns of using Grey Water?
  • Will I need a permit to install a Grey Water System?
  • If I wanted to install a Grey Water System, how would I go about it?
  • What products are safe to use with a Grey Water System?
  • What components comprise a Grey Water System?

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New Directions for U.S. Water Policy

A Roundtable & Video Hosted by Mei-Ling Shek

Water is critical to America's social, economic, and ecological well-being. Yet, more than 70 percent of the western United States is in the grip of an ongoing drought that shows no signs of ending. The water crisis is as much an economic issue as an environmental one, and demands focused national attention.

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Ocean Acidification

EGG Thursday Morning Meeting

The Earth's oceans are becoming more acidic as a result of the rising uptake of CO2 into the atmosphere which then gets dissolved into the oceans. This lowering of PH is causing some disturbing results which negatively impact our environment. How much is cyclic? How much is due to our release of CO2? What are the changes going to be 20 years, 50 years, 100 years from now? Are any of the adverse changes reversible? Join us at the Thursday April 2nd morning meeting which will be devoted to this important issue. We will show several videos and have a discussion with a Q&A session following.

Thursday Morning Meeting, April 02, 2015, 8:15am - 9:45am
Free, No reservations required, but it would be appreciated if you signup on our Meetup site.

Saratoga Federated Church, Richards Hall, 20390 Park Place, Saratoga, CA 95070
Enter on west side, corner of Oak Place and Saratoga-Los Gatos Rd (Hiway 9).

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