domenica 30 maggio 2010

giovedì 20 maggio 2010

Adbusters: The Journal of Mental Environment . Un movimento contro l'inquinamento mentale


Adbusters- Media Foundation is a not-for-profit, anti-consumerist organization founded in 1989 by Kalle Lasn and Bill Schmalz in Vancouver, British Columbia, Canada. The foundation describes itself as "a global network of artists, activists, writers, pranksters, students, educators and entrepreneurs who want to advance the new social activist movement of the information age."[1]

The foundation publishes Adbusters- Journal of Mental Environment , an activist magazine with a circulation of 120,000 devoted to numerous political and social causes, many of which are anti-consumerist in nature. Adbusters has also launched numerous international social marketingcampaigns, including Buy Nothing Day and TV Turnoff Week, and is known for their "subvertisements" that spoof popular advertisements.

Lasn: “Over-consumption has ecological consequences… over-consumption is, in some sense, the mother of all our environmental problems.”
CNN: “Oh, c’mon, environmental problems?”





lunedì 17 maggio 2010

Ecosystem equilibrium


The mutual habitude of human beings, the growing industrialization and the density of the populations may deeply modify the natural ecological dynamics.

As a result of these modifications, the equilibrium of Ecology has long put under pressure, and by the assumption that populations and communities typically exist under equilibrium conditions in habitats saturated with both individuals and species. However, much evidence contradicts these assumptions and it is likely that nonequilibrium is much more widespread than might be expected.

The city represents an Artificial Ecosystem, made by man, and in continous transformation
To make the city safe and confortable to live in, it is necessary to know how to regulate the equilibrium mentioned above; through the relationships between the many differents species, the environmental conditions that help its growth and reproduction, and the negative mechanisms that work against it.

The study of ecosystems mainly consists of the study of certain processes that link the living, or biotic (biocenosi) , components to the non-living, or abiotic (biotopo), components.


Rather than worrying mainly about particular species, we try to focus on major functional aspects of the system. These functional aspects include such things as the amount of energy that is produced by photosynthesis, how energy or materials flow along the many steps in a food chain, or what controls the rate of decomposition of materials or the rate at which nutrients are recycled in the system.

ABIOTIC COMPONENTS
BIOTIC COMPONENTS
SunlightPrimary producers
TemperatureHerbivores
PrecipitationCarnivores
Water or moistureOmnivores
Soil or water chemistry (e.g., P, NH4+)Detritivores
etc.etc.
from http://www.globalchange.umich.edu/globalchange1/current/lectures/kling/ecosystem/ecosystem.html



mercoledì 12 maggio 2010

I videogiochi per l’ambiente premiati (e venduti) da Microsoft

La Imagine Cup è una competizione organizzata da Microsoft e dedicata a oltre 200.000 studenti provenienti da più di 100 nazioni che premia chi, attraverso la tecnologia, realizza i migliori progetti per cambiare il mondo proteggendo l’ambiente.

from http://media.panorama.it/


Supermodels Take It Off For Climate Change - Le modelle si spogliano per il surriscaldamento globale.

Supermodels Take It Off For Climate Change -
dieci modelle che improvvisano uno striptease liberatorio per manifestare contro il surriscaldamento globale. È il video che Russell Cameron, super top da copertina e ambientalista convinta, ha prodotto e girato insieme alle sue amiche e colleghe per promuovere la campagna di350.org, l’associazione che si occupa di sensibilizzare la popolazione mondiale sui pericoli provocati dal diossido di carbonio.






Bolivia:" la terra non ci appartiene, ma siamo noi ad appartenerle”

Durante l'Assemblea dell'ONU del 22 aprile 2009, il Presidente Costituzionale dello Stato Plurinazionale di Bolivia - Campagna Amazzonia senza Petrolio -
ha ottenuto che si dichiarasse la Giornata della Madre Terra, perchè “la terra non ci appartiene, ma siamo noi ad appartenerle”, segnalando a questo proposito quattro diritti della Madre Terra:
il diritto alla vita degli ecosistemi,
il diritto alla rigenerazione della biodiversità,
il diritto a vivere senza inquinamento
ed il diritto alla convivenza armonica con la natura.
Il Foro Boliviano sull'Ambiente e lo Sviluppo (FOMOBADE) è un'organizzazione nazionale impegnata nel settore dei diritti umani ed ambientali dei boliviani e delle boliviane, da ormai più di 15 anni. Si compone di organizzazioni sociali, di produzione, accademiche, gruppi giovanili, parlamentari, ecologisti, di consumatori e di persone che lavorano nelle loro comunità per la protezione dell'ambiente e delle risorse naturali. L'agenda di intervento pubblico include l'elaborazione e l'assistenza nell'applicazione di politiche socio-ambientali, l'appoggio alle comunità per la gestione dei conflitti ambientali, l'esercizio di diritti ambientali e l'ingresso di tematiche quali la sostenibilità e la sovranità alimentare all'interno del dibattito politico nazionale, attraverso la promozione di attività che prevedono un uso sostenibile delle risorse da parte degli attori locali.




Un mundo no-hegemónico

martedì 4 maggio 2010

Say "No" and cushion Apulia region, Tremiti Islands, Monopoli and the Gulf of Taranto against the risk of oil spill

The Irish company Petroceltic Elsa made the request for oil exploration off Gargano while targeting the sea off Monopoli is the British Northern Petroleum. ''It is not true that accidents on oil rigs are extremely rare: they are instead very frequent. At least 20 cases have been recorded over the past twenty years - at least one per year - some of which also resulted in casualties,'' said the head of the research department at the Higher Institute for Environmental Protection and Research (ISPRA), Silvio Greco.'' We must take into account the fact that an accident of the sort that has occurred off the American coastline could also happen to us here in the Mediterranean,'' said Greco. ''It has very little waters replacement and is a closed body of water: it is clear that the impact from an accident like the one that happened in the Gulf of Mexico could be devastating.''




domenica 2 maggio 2010

The worst offshore spill in history of USA

News By Dan Shapley

The Gulf of Mexico oil Spill, caused by a BP oil-drilling project (by the Transocean Deepwater Horizon rig), is an environmental catastrophe requiring an unprecedented response. Eleven workers were killed by the blast on the rig April 20, and the open well is gushing 5,000 barrels or more every day from three leaks so deep underwater that BP and federal agencies say it could take three months or more to fix the leaks. If the oil continues spilling for two months, it would be larger than the infamous Exxon Valdez spill 21 years ago (if it hasn't already).

Booms, at the mercy of weather, are deployed along the Gulf Coast, suspect chemicals are being sprayed to disperse the oil, and massive structures are to be dropped over the leaks in an attempt to contain and pump out the oil before it spreads. But the oil slick is already nearly the size of Jamaica, and on the doorstep of coastal communities in Louisiana, Alabama and Florida. Critical habitat for 400 species of birds, fish and other marine life is threatened, at a critical breeding time; up to half of the U.S. supply of some popular seafood, like shrimp, oysters and bluecrabs at risk; and oil-soaked creatures have already begun washing ashore.

It's easy to feel hopeless in the face of such disaster. Taking action is one of the best antidotes for that feeling. What can individuals do to help?



Read more:
http://www.thedailygreen.com/environmental-news/latest/gulf-oil-spill-2010-0503#ixzz0muXiiSwp




A few of the 40 Greatest Nature Photographs of All Time

Sea lions playing in the sea grass beds off Little Hopkins Island Australia, by David David Doubilet

Water lilies, Nymphaea nouchali, Okavango Delta, Botswana, by Frans Lanting

Tortoises at Dawn, Galapagos Islands, 1984, by Frans Lanting

Botswana 1989, by Frans Lanting. The image has been selected for the International League of Conservation Photographers (ILCP) 40 Greatest Nature Photographs of All Time