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EPLIES
Public Library of Ideas

Scientists Develop Low-Cost Version of CCS

Sun, 05/18/2008 - 06:55 — EPLIER

Scientists Develop Low-Cost Version of CCS - Image courtesy of melancholic optimist via flickr Carbon capture and storage (CCS) has always been a tough proposition: Scientists and environmentalists worry about the potential leakage from storage sites and its additional fuel requirements, while energy utilities complain about the excessive costs and risks associated with the technology. A new technology developed by scientists at the University of Wyoming, Laramie, could help...read on [Tree Hugger]

Soil Carbon Sequestration

Sun, 06/15/2008 - 18:41 — EPLIER

Soil Carbon Sequestration Impacts on Global Climate Change and Food Security

R. Lal

The carbon sink capacity of the world's agricultural and degraded

soils is 50 to 66% of the historic carbon loss of 42 to 78 gigatons

of carbon. The rate of soil organic carbon sequestration with

adoption of recommended technologies depends on soil texture

and structure, rainfall, temperature, farming system, and soil

management. Strategies to increase the soil carbon pool include

soil restoration and woodland regeneration, no-till farming,

cover crops, nutrient management, manuring and sludge application,

improved grazing, water conservation and harvesting, efficient

irrigation, agroforestry practices, and growing energy crops

on spare lands. An increase of 1 ton of soil carbon pool of

degraded cropland soils may increase crop yield by 20 to 40

kilograms per hectare (kg/ha) for wheat, 10 to 20 kg/ha for

maize, and 0.5 to 1 kg/ha for cowpeas. As well as enhancing

food security, carbon sequestration has the potential to offset

fossilfuel emissions by 0.4 to 1.2 gigatons of carbon per year,

or 5 to 15% of the global fossil-fuel emissions.

http://www.sciencemag.org/cgi/content/abstract/304/5677/1623

Pumzi

 

Pumzi

Luonto on kuollut. Kaikkialla on pelkkää tyhjyyttä kolmannen maailmansodan jälkeen, joka on käyty veden omistuksesta 35 vuotta sitten. Maitu Councilin sisätiloissa elävän yhteisön museokuraattorina toimiva Asha saa yllättäen paketin multaa postista ja istuttaa siihen vanhan siemenen, joka alkaa heti itää. Asha pyytää lupaa tutkia elämän mahdollisuutta ulkomaailmassa, mutta Council ei myönnä hänelle viisumia. Asha murtautuu ulos yhteisöstä autioon ulkomaailmaan päästäkseen istuttamaan orastavan taimen. Onko ulkomaailmassa sittenkin elämää? Kenialaisen ohjaajan Wanuri Kahiun scifi-lyhytelokuva valittiin Sundance Film Festivalin ohjelmistoon 2010.

Nature is extinct. The outside is dead, 35 years after World War III - “The Water War”. Asha lives and works as a museum curator in one of the indoor communities set up by the Maitu Council. When she receives a box in the mail containing soil, she plants an old seed in it and the seed starts to germinate instantly. Asha appeals to the Council to grant her permission to investigate the possibility of life on the outside but the Council denies her exit visa. Asha breaks out of the inside community to go into the dead and derelict outside to plant the growing seedling and possibly find life on the outside.

Official Selection, Sundance Film Festival 2010

 

 

Maa / Country:
Kenia / Kenya
Vuosi / Year:
2009
Elokuvan kesto / Film length:
20 minutes
Ohjaaja / Director:
Wanuri Kahiu
    
Esitysaika
Showtime
Lauantai / Saturday 7.5. 12:00
Elokuva on englanninkielinen. 
The film is in English.