Home  5  Books  5  GBEzine  5  News  5  HelpDesk  5  Register  5  GreenBuilding.co.uk
Not signed in (Sign In)

Categories



Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

Buy individually or both books together. Delivery is free!


powered by Surfing Waves




Vanilla 1.0.3 is a product of Lussumo. More Information: Documentation, Community Support.

Welcome to new Forum Visitors
Join the forum now and benefit from discussions with thousands of other green building fans and discounts on Green Building Press publications: Apply now.




  1.  
    This weeks flavour of the month ?
    http://www.bbc.co.uk/news/business-27021610
    New to me
    "Otherwise known as fire ice, methane hydrate presents as ice crystals with natural methane gas locked inside. They are formed through a combination of low temperatures and high pressure, and are found primarily on the edge of continental shelves where the seabed drops sharply away into the deep ocean floor"
    "One cubic metre of the compound releases about 160 cubic metres of gas, making it a highly energy-intensive fuel. This, together with abundant reserves and the relatively simple process of releasing the methane, means a number of governments are getting increasingly excited about this massive potential source of energy"
    • CommentAuthorEd Davies
    • CommentTimeApr 21st 2014
     
    The whole methane hydrate thing is very controversial. Firstly, it's yet another source of carbon we really need to leave below the surface (though probably less so than coal). Then there's the question of how much methane, with its higher short-term global warming effect than CO₂, would be released in the process of extracting the stuff.

    Also, there's the possibility that methane hydrates will form a significant positive feedback for global warming. As the sea warms hydrate melts releasing methane which then contributes to further warming. A few years ago there was very serious concern about this but, AIUI, further investigation seemed to indicate there wasn't actually that much of a problem. However, that was all a bit theoretical so it's difficult to know how to take measurements from the sea off the north coast of Siberia, done by people from the University of Alaska, which seem to show that there is more methane coming out of the sea now. A bit difficult as there isn't good baseline data for comparison so these results are being treated with some scepticism elsewhere but there's enough interest that other groups doing investigations - there's a heavily instrumented biz-jet type aircraft based at Cranfield which has been doing measurements around the north of Norway to look into hydrate/permafrost/etc methane sources.
Add your comments

    Username Password
  • Format comments as
 
   
The Ecobuilding Buzz
Site Map    |   Home    |   View Cart    |   Pressroom   |   Business   |   Links   
Logout    

© Green Building Press