Mostrar mensagens com a etiqueta ambiente. Mostrar todas as mensagens
Mostrar mensagens com a etiqueta ambiente. Mostrar todas as mensagens

04 setembro 2009

world's craziest geoengineering scheme

«A manmade volcano erupting continuously to shade the Earth until greenhouse gas levels in the atmosphere are brought down. Thousands of mirrors boosted into geosynchronous orbit to block sunlight. Crewless ships wander the oceans spewing saltwater into the air to increase cloud cover.

These are just a few of the proposals from scientists to manipulate, or geoengineer, the planet to stave off global warming.»

http://www.scientificamerican.com/podcast/episode.cfm?id=worlds-craziest-geoengineering-sche-09-09-03

08 novembro 2007

NO SHIT?!



The End of Oil is Upon Us. We Must Move On - Quickly.

«If there are any lingering doubts as to whether the age of oil is nearing its end, the International Energy Agency has put them to rest and made it clear that only a massive and immediate investment in sustainable energy will prevent a global crisis.

The agency states in no uncertain terms in its annual World Energy Outlook that "alarming" growth in worldwide energy needs will within a generation threaten energy security, accelerate global climate change and possibly bring worldwide shortages and conflicts.»

via AUTOPIA [http://blog.wired.com/cars/2007/11/the-age-of-oil-.html]


http://blog.wired.com/cars/2007/11/the-age-of-oil-.html
http://blog.wired.com/cars/



04 outubro 2007

visions of a biofuel future


The Price of Sugar (2007), de Bill Haney e Peter Rhodes

«Indentured servitude, a workforce confined to the borders of the plantation by armed guards, being "paid" by being allowed to live in unlit huts and drink water from the pig trough. Violations punished by summary execution and burial in an unmarked pit.

This sounds like a historical account of life on a colonial plantation of the 18th century, but is actually the description of the sugar industry, today, in the Dominican Republic. The new film "The Price of Sugar," about the abuses of Hatian migrant workers on a Dominican sugar plantation, tells the story of a Catholic priest trying to organize the workers. (IMDB, NPR story)

Of course, the larger issue here is that biofuel production is dependent on exactly this industry. As long as biofuels are an over-subsidized boondoggle, then industrially raised corn is fine. Well paid farmers driving their John Deere tractors don't present a human rights problem. But as EROEIs decline and we increasingly turn to human labor for biofuels, classical plantation problems will likely resurface in force.

It may be quite some time before Americans are enslaved in the production of fuel for other Americans' cars, but are we so racist/nationalist/blind to accept the enslavement of others to these ends?»

por Jeff Vail, [http://www.jeffvail.net/2007/10/visions-of-biofuel-future.html]


http://www.jeffvail.net/
http://www.thepriceofsugar.com/

14 julho 2007

eco-cabana

«A Eco-cabana deve romper com o modelo tradicional de abrigos de montanha e construções similares, e apresentar um design inovador, que transmita, por um lado a leveza de toda a estrutura, e por outro a associação entre materiais tradicionais e novas tecnologias. A estrutura deve ainda tomar a forma modular, de modo a permitir a conjugação de vários edifícios em edifícios maiores. »

http://ultimahora.publico.clix.pt/noticia.aspx?id=1299459&idCanal=10
http://www.cascaisnatura.org/Default.aspx?ID=17