Wednesday, April 16, 2008

Articles 4/16/08

"Climatic change at the end of the last glacial period led to an increase in the size and concentration of patches of wild cereals in certain areas (Wright 1977). The large quantities of cereals newly available provided an incentive to try to make a meal of them. People who succeeded in eating sizeable amounts of cereal seeds discovered the rewarding properties of the exorphins contained in them. Processing methods such as grinding and cooking were developed to make cereals more edible. The more palatable they could be made, the more they were consumed, and the more important the exorphin reward became for more people.

At first, patches of wild cereals were protected and harvested. Later, land was cleared and seeds were planted and tended, to increase quantity and reliability of supply. Exorphins attracted people to settle around cereal patches, abandoning their nomadic lifestyle, and allowed them to display tolerance instead of aggression as population densities rose in these new conditions.

Thus major civilisations have in common that their populations were frequent ingesters of exorphins. We propose that large, hierarchical states were a natural consequence among such populations. Civilisation arose because reliable, on-demand availability of dietary opioids to individuals changed their behaviour, reducing aggression, and allowed them to become tolerant of sedentary life in crowded groups, to perform regular work, and to be more easily subjugated by rulers. Two socioeconomic classes emerged where before there had been only one (Johnson & Earle 1987:270), thus establishing a pattern which has been prevalent since that time." Source

"All animals bear the physiological scars left by the past greenhouse extinctions and hydrogen sulfide events, and we mammals are no exception. While high levels of H2S kill mammals ... a bit less slows a creature's metabolism. ... By exposing lab mice to small doses of H2S, Roth and his team can put them into the deepest of sleeps--with very slow, or even no heartbeats--for several hours. In that time, the mice can be cooled to temperatures that would have killed them prior to the H2S exposure." Source

"[T]he post-Roman economic collapse had its roots in the very sophistication and specialization that made the Roman economy so efficient. ... A single generation of social chaos and demographic contraction thus could easily have been enough to break the transmission of the complex craft traditions of Roman pottery-making, leaving the survivors with only the dimmest idea of how to make good pottery." Source

A great podcast: "Researchers say that adding charcoal to soil may provide more benefits for long-term soil quality than compost or manure. It could also be used to sequester carbon captured from carbon dioxide emissions. Mingxin Guo discusses new applications for the technique, used more than 1,500 years ago in the Amazon basin."
Source

"[I]n a radical move, the city - which has suffered since the steel industry left town and jobs dried up - is bulldozing abandoned buildings, tearing up blighted streets and converting entire blocks into open green spaces. More than 1,000 structures have been demolished so far." Source


"Every time a new coal-fired power plant is proposed anywhere in the United States, a lawyer from the Sierra Club or an allied environmental group is assigned to stop it, by any bureaucratic or legal means necessary.

They might frame the battle as a matter of zoning or water use, but the larger war is over global warming: Coal puts twice as much temperature-raising carbon dioxide into the atmosphere as natural gas, second to coal as the most common power plant fuel." Source

"The plants will employ thousands of tiny, flat movable mirrors called heliostats to focus and concentrate the sun’s energy upon a water boiler, heating it to more than 1,000 degrees. This generates steam, which in turn drives a turbine to generate electricity. Plants will consist of clusters of these “solar fields”, with each tower producing 20 megawatts of power." Source

"Thousands of farmers are taking their fields out of the government’s biggest conservation program, which pays them not to cultivate. They are spurning guaranteed annual payments for a chance to cash in on the boom in wheat, soybeans, corn and other crops. Last fall, they took back as many acres as are in Rhode Island and Delaware combined." Source

Labels:

0 Comments:

Post a Comment

<< Home