If you save the Ocean You save the Planet

NO PLASTIC AT SEA

NO PLASTIC AT SEA

Petizione OCEAN4FUTURE

Titolo : Impariamo a ridurre le plastiche in mare

Salve a tutti- Noi crediamo che l'educazione ambientale in tutte le scuole di ogni ordine e grado sia un processo irrinunciabile. Crediamo che l'esempio valga più di mille parole. Siamo arrivati a oltre 4000 firme ma continuiamo con la speranza che la classe politica comprenda l'emergenza in cui siamo, speriamo con maggiore coscienza
seguite il LINK per firmare la petizione

Ultimi articoli

  Address: OCEAN4FUTURE

What is the Anthropocene and Are We in It?

The-Era-of-Our-Ways-phenomenon-631.jpg__800x600_q85_crop

Illustration by Stephanie Dalton Cowan

What is the Anthropocene and Are We in It?
Efforts to label the human epoch have ignited a scientific debate between geologists and environmentalists

josephstromberg1By Joseph Stromberg
SMITHSONIAN MAGAZINE  JANUARY 2013

Have human beings permanently changed the planet?
That seemingly simple question has sparked a new battle between geologists and environmental advocates over what to call the time period we live in.

RELATED CONTENT
How The Fukushima Exclusion Zone Shows Us What Comes After The Anthropocene
Accepting the Idea of Extinction

 

antropocene

According to the International Union of Geological Sciences (IUGS), the professional organization in charge of defining Earth’s time scale, we are officially in the Holocene (“entirely recent”) epoch, which began 11,700 years ago after the last major ice age.
But that label is outdated, some experts say. They argue for “Anthropocene”—from anthropo, for “man,” and cene, for “new”—because human-kind has caused mass extinctions of plant and animal species, polluted the oceans and altered the atmosphere, among other lasting impacts. Anthropocene has become an environmental buzzword ever since the atmospheric chemist and Nobel laureate Paul Crutzen popularized it in 2000. This year, the word has picked up velocity in elite science circles: It appeared in nearly 200 peer-reviewed articles, the publisher Elsevier has launched a new aca­demic journal titled Anthropocene and the IUGS convened a group of scholars to decide by 2016 whether to officially declare that the Holocene is over and the Anthropocene has begun.

imagesMany stratigraphers (scientists who study rock layers) criticize the idea, saying clear-cut evidence for a new epoch simply isn’t there. “When you start naming geologic-time terms, you need to define what exactly the boundary is, where it appears in the rock strata,” says Whitney Autin, a stratigrapher at the SUNY College of Brockport, who suggests Anthropocene is more about pop culture than hard science. The crucial question, he says, is specifying exactly when human beings began to leave their mark on the planet: The atomic era, for instance, has left traces of radiation in soils around the globe, while deeper down in the rock strata, agriculture’s signature in Europe can be detected as far back as A.D. 900.

The Anthopocene, Autin says, “provides eye-catching jargon, but from the geologic side, I need the bare bones facts that fit the code.”  Some Anthropocene proponents concede that difficulty. But don’t get bogged down in the mud, they say, just stipulate a date and move on. Will Steffen, who heads Australia National University’s Climate Change Institute and has written articles with Crutzen, recommends starting the epoch with the advent of the industrial revolution in the early 1800s or with the atomic age in the 1950s.

Either way, he says, the new name sends a message: “[It] will be another strong reminder to the general public that we are now having undeniable impacts on the environment at the scale of the planet as a whole, so much so that a new geological epoch has begun.” To Andrew Revkin, a New York Times reporter (now blogger) who suggested a similar term in 1992 that never quite caught on (“Anthrocene”), it’s significant that the issue is being debated at all. “Two billion years ago, cyanobacteria oxygenated the atmosphere and powerfully disrupted life on Earth,” he says. “But they didn’t know it. We’re the first species that’s become a planet-scale influence and is aware of that reality. That’s what distinguishes us.”

Earth and North America from Space - taken from a digitally enhanced, 1972 NASA Apollo 16 Mission negative - one of the last manned flights at this distance - 10,000 miles, or 16,000 kilometers - restored historic photo, not computer generated

Earth and North America from Space – taken from a digitally enhanced, 1972 NASA Apollo 16 Mission negative – one of the last manned flights at this distance – 10,000 miles, or 16,000 kilometers – restored historic photo, not computer generated

Note: The Anthropocene is a proposed era (by 2000 Nobel awarded Paul Crutzen)  that begins when human activities started to have a significant global impact on Earth’s geology and ecosystems. Neither the International Commission on Stratigraphy nor theInternational Union of Geological Sciences has yet officially approved the term as a recognized subdivision of geological time, although the Working Group on the Anthropocene (WGA) have voted to formally designate the epoch Anthropocene and present the recommendation to the International Geological Congress on 29 August 2016.

reference : What is the Anthropocene and Are We in It?
By Joseph Stromberg  SMITHSONIAN MAGAZINE  January 2013

print
(Visited 28 times, 1 visits today)
Share

Lascia un commento

Il tuo indirizzo email non sarà pubblicato. I campi obbligatori sono contrassegnati *

Legenda

Legenda

livello elementare articoli per tutti

livello medio articoli che richiedono conoscenze avanzate

livello difficile articoli specialistici

Translate:

Traduzione

La traduzione dei testi è fornita da Google translator in 37 lingue diverse. Non si assumono responsabilità sulla qualità della stessa

La riproduzione, anche parziale, a fini di lucro e la pubblicazione e qualunque altro utilizzo del presente articolo e delle immagini contenute è sempre soggetta ad autorizzazione da parte dell’autore che può essere contattato tramite

infoocean4future@gmail.com


If You Save the Ocean
You Save Your Future

OCEAN4FUTURE

Salve a tutti. Permettimi di presentare in breve questo sito. OCEAN4FUTURE è un portale, non giornalistico, che pubblica articoli e post di professionisti e accademici che hanno aderito ad un progetto molto ambizioso: condividere la cultura del mare in tutte le sue forme per farne comprendere la sua importanza.

Affrontiamo ogni giorno tematiche diverse che vanno dalla storia alle scienze, dalla letteratura alle arti.
Gli articoli e post pubblicati rappresentano l’opinione dei nostri autori e autrici (non necessariamente quella della nostra redazione), sempre nel pieno rispetto della libertà di opinione di tutti.
La redazione, al momento della ricezione degli stessi, si riserva di NON pubblicare eventuale materiale ritenuto da un punto di vista qualitativo non adeguato e/o non in linea per gli scopi del portale. Grazie di continuare a seguirci e condividere i nostri articoli sulla rete.

Andrea Mucedola
Direttore OCEAN4FUTURE

Chi c'é online

4 visitatori online

Ricerca multipla

Generic selectors
Exact matches only
Search in title
Search in content
Search in posts
Search in pages
Filter by Categories
Archeologia
Associazioni per la cultura del mare
Astronomia e Astrofisica
Biologia
Cartografia e nautica
Chi siamo
Conoscere il mare
Didattica
disclaimer
Ecologia
Emergenze ambientali
Fotografia
Geologia
geopolitica
Gli uomini dei record
I protagonisti del mare
Il mondo della vela
L'immersione scientifica
La pesca
La pirateria
La subacquea ricreativa
Lavoro subacqueo - OTS
Le plastiche
Malacologia
Marina mercantile
marine militari
Marine militari
Materiali
Medicina subacquea
Meteorologia e stato del mare
Normative
Ocean for future
OCEANO
Oceanografia
per conoscerci
Pesca non compatibile
Programmi
Prove
Recensioni
Relitti Subacquei
Reportage
SAVE THE OCEAN BY OCEANDIVER campaign 4th edition
Scienze del mare
Sicurezza marittima
Storia della subacquea
Storia Navale
subacquea
Subacquei militari
Sviluppi della scienza
Sviluppo compatibile
Tecnica
Uncategorized
Uomini di mare
Video

For English readers

 


Do you like what you read and see on our site? OCEAN4FUTURE is a free blog, totally  independent, followed by million of people every year. Although mostly written in Italian Language,  ALL posts may be read in English, and other 36 languages.


We consistently publish Ocean news and perspectives from around the World that you may don’t get anywhere else, and we want to be able to provide you an unfattered reading.

Support us sharing our post links with your friends and, please consider a one-time donation in any amount you choose using one of the donation link in the portal.

Thanks  and stay with us.

OCEAN4FUTURE

 i nodi fondamentali

Follow me on Twitter – Seguimi su Twitter

Tutela della privacy – Quello che dovete sapere

Share