Some developing countries have oversized carbon footprints because they manufacture so much of our junk, and their factories are sending smog back our way.
Nel corso degli anni è notevolmente cambiato il modo di produrre e di distribuire il cibo, dal campo o allevamento fino alla nostra tavola. I fenomeni più vistosi sono stati la globalizzazione dell'industria alimentare, l'incremento dell'import/export di alimenti e materie prime, la concentrazione di grandi produttori a scapito dei piccoli, l'aumento di grandi punti vendita.
For the sources of the citations, go here: * On the Guaranteed Income and Manufacturing Consentives, 1966 "The guaranteed income will, in fact, lead to the revival of "private enterprise." Once the guaranteed income is available, we can anticipate the organization of what I have called "consentives": productive groups formed by individuals who will come... Continue reading ...
When the Scottish Government set itself the target of generating 100% of the country's electricity from renewables by 2020 many people scoffed. Now that goal is only six years away. Is it reachable? Remember
2012/10/22: Three Explanations for the Inverse Relationship
The first explanation for the inverse relationship has to do with market failures. In one of the earliest studies on the inverse relationship, for example, Sen (1966) posited that everything else equal, households whose farms were smaller simply had more labor per hectare than larger farms. Though the labor market can usually absorb surplus labor, high unemployment might push households whose farms are smaller to use more labor than is optimal on their farms, with the end result being that households whose farms are smaller will have higher yields.
The second explanation for the inverse relationship has to do with omitted variables. Most empirical researchers working on the inverse relationship do not have precise measures of soil quality (e.g., carbon, nitrogen, and potassium in the soil as well as soil pH). But since most people choose to cultivate good lands first and will tend to choose relatively worse lands as they increase the size of their farms, it is very likely that larger farms have lower soil quality on average. Once again, the end result is that larger farms appear less productive than smaller farms.
The third explanation for the inverse relationship has to do with measurement error. This happens when the size of a farmer’s landholdings is measured with error and that error is negatively correlated with the true size of a farmer’s landholdings. For example, if farmers consistently over-report the size of their landholdings (say, because land is a measure of prestige and political power, as in many developing countries), one would find a spurious inverse relationship between farm size and productivity.
In a 2010 World Development article on the inverse relationship, my coauthors and I had access to precise soil quality measurements for a sample of Malagasy farms. We found that those usually omitted soil quality measurements explain only a very small fraction of the observed inverse relationship and that market failures explain most (though not all) of it.
None of the explanations above mean that smallholders are in a better position to feed the world, and to claim otherwise is dangerous, as it leaves people with gravely mistaken beliefs about food security.
To see this, you only need to ask yourself whether you really believe that the key to improving food security and feeding the world lies in breaking up large farms into smaller ones.
Increasingly states are quashing the power of local governments--and thwarting innovation
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An Evolving Exploration into the Head, Heart and Hands of Energy Descent
Il bilancio di fine anno tracciato dall'Anev, l'associazione dei produttori. Nel 2012 si registra ancora un +18,5% ma in quest'anno le nuove normative che
The case for turning numbers into action.
We like to think we do our part by buying local and riding our bikes. Not so, says author Greg Sharzer. We need a revolution!
Find the sources here: everything old is new again. The resurgent interest in local foods and home-scale preservation-from canning, jamming, freezing, brewing, fermenting, and otherwise experimenting with food-is happening coast to coast. Taking up the pot and the pan, the cheesecloth and strainer, the canning jar and the wine bottle, homesteaders are beginning to reweave... Continue reading ...
Jonathan Glennie: Communities have more hope than ever of seeing off companies trying to acquire their land, with support from media and NGOs
Thankfully, Congress has walked the U.S. back from the edge of the fiscal cliff with a last-minute bandaid of a bill. Along with $600 billion in new tax revenues, the deal also includes a temporary fix to the farm bill, an end to the payroll tax break, and tax credits for businesses. Both sides of the aisle will take it as a cue to moan and groan about the other.
America can't afford to leave its government in the hands of professionals.
2011/09/01: Historically, data sources for urban planning have remained relatively stable. Planners relied on a collection of well-known government-produced datasets to do their work, including statistics and geographic layers from federal, state and local sources. Produced by regulatory processes or occasional surveys, the strengths and limitations of these sources are well known to planners and many citizens. However all this is beginning to change. Not only has the U.S. Census Bureau's American Community Survey introduced a bewildering variety of data products, all with margins of error, three interrelated categories of new data are growing rapidly: crowdsourced, private, and "big" data.
What would the world be like if we could build houses out of bacteria? For starters, the story of the Three Little Pigs might have ended very differently. But biomanufactured bricks, made of a mixture of sand and non-pathogenic bacteria,...
Co-authored by Corie N. Radka and Nora M. M195188ller A recent