Given these, a new term Anthropocene, is specifically proposed and used informally for the latest part of this epoch since approximately synchronous lithospheric evidence, or more recently atmospheric evidence, of human impacts have been found on the Earth and its ecosystems ; these impacts may be considered of global significance for future evolution of living species.

The Anthropocene is a term introduced in 2000.

The term Anthropocene is a term that is used by few scientists, and some commentators may refer to the current and projected future extinctions as part of a longer Holocene extinction.

The Holocene – Anthropocene boundary is contested, with some commentators asserting significant human influence on climate for much of what is normally regarded as the Holocene Epoch.

A proposed but as of yet informal third epoch, the Anthropocene, has also gained credence as the time in which humans began to profoundly affect and change the global environment, although its start date is still disputed.

Many scientists are now using the term and the Geological Society of America entitled its 2011 annual meeting: Archean to Anthropocene: The past is the key to the future.

" The word evolved into the Anthropocene, which is generally regarded as being a more suitable technical term.

While much of the environmental change occurring on Earth is suspected to be a direct consequence of the Industrial Revolution, William Ruddiman has argued that the proposed Anthropocene began approximately 8, 000 years ago with the development of farming and sedentary cultures.

That 8, 000 years ago the planet sustained a few million people and was still fundamentally pristine, is the basis for an assertion that an early date for the proposed Anthropocene term does not account for a substantial human footprint on Earth.

Doing so, is difficult, perhaps it even is unrealistic to identify a Year Zero of an Anthropocene era.

In the contemporary environment, the amount of influence humans have on the other two spheres is comparable to a geological force ( see Anthropocene ).

In 2000, Nobel prize-winning scientist Paul Crutzen announced the scale of change is so great that in just 250 years, human society has pushed the planet into a new geological era: the Anthropocene.

Lynas argues that as Earth has entered the Anthropocene, and as such humanity is changing the planet's climate, its bio-geochemical cycles, the chemistry of the oceans and the colour of the sky, as well as reducing the number of species.

Other commentators place the Holocene – Anthropocene boundary at the industrial revolution while also saying that " Formal adoption of this term in the near future will largely depend on its utility, particularly to earth scientists working on late Holocene successions.

Those arguing for earlier dates posit that the proposed Anthropocene may have begun as early as 14, 000 to 15, 000 years before present, based on lithospheric evidence ; this has led other scientists to suggest that " the onset of the Anthropocene should be extended back many thousand years "; this would be closely synchronous with the current term, Holocene.

The ecologist Eugene Stoermer originally coined the term Anthropocene by analogy, with the word " Holocene ".

The Anthropocene has no precise start date, but based on atmospheric evidence may be considered to start with the Industrial Revolution ( late eighteenth century ).

Arguing the early Anthropocene hypothesis, William Ruddiman claims that the Anthropocene, as defined by significant human impact on greenhouse gas emissions, began not in the industrial era, but 8, 000 years ago, as ancient farmers cleared forests to grow crops.

They are recalcitrant repositories of artefacts and properties that testify to the dominance of the human impact, and hence appear to be reliable markers for the Anthropocene.

* Working Group on The ' Anthropocene ', International Commission on Stratigraphy ( ICS )

* " The Anthropocene ", copy of original International Geosphere-Biosphere Programme article on Crutzen's website, May 2000.

According to some scholars, a third division, the Anthropocene, began in the 18th century.

In 2008 a proposal was presented to the Stratigraphy Commission of the Geological Society of London to make the Anthropocene a formal unit of geological epoch divisions.

Steps are being taken by independent working groups of scientists from various geological societies to determine whether the Anthropocene will be formally accepted into the Geological Time Scale.

So I said: ' No, we are in the Anthropocene.

A 13 July 2012 New York Times op-ed piece by the ecologist, Roger Bradbury, spelled the end of biodiversity for the oceans by saying that the coral reefs are doomed, " Coral reefs will be the first, but certainly not the last, major ecosystem to succumb to the Anthropocene.

Crutzen proposed the Industrial Revolution as the start of Anthropocene.

Dating of the beginning of a period called, Anthropocene, therefore ought to be assigned to the moment when humankind joined with the other environmental forces in shaping the planet.

A plausible starting point of the Anthropocene could be at c. 2, 000 years ago, which roughly coincides with the start of the final phase of Holocene, the Subatlantic.

association by level of achievement is the dominant principle of informal relations.

the mission of the church is actually a process of informal co-optation ; ;

A trial de novo is usually available for review of informal proceedings conducted by some minor judicial tribunals in proceedings that do not provide all the procedural attributes of a formal judicial trial.

While there is no generally accepted formal definition of " algorithm ," an informal definition could be " a set of rules that precisely defines a sequence of operations.

Gurevich: "... Turing's informal argument in favor of his thesis justifies a stronger thesis: every algorithm can be simulated by a Turing machine ... according to Savage, an algorithm is a computational process defined by a Turing machine ".

The term argot is also used to refer to the informal specialized vocabulary from a particular field of study, hobby, job, sport, etc.

In this article, an informal approach is discussed.

It has been argued that the name " Titus " in 2 Corinthians and Galatians is nothing more than an informal name used by Timothy, implied already by the fact that even though both are said to be long-term close companions of Paul, they never appear in common scenes.

Some doubts have been raised about the long-term effectiveness of antipsychotics for schizophrenia, in part because two large international World Health Organization studies found individuals diagnosed with schizophrenia tend to have better long-term outcomes in developing countries ( where there is lower availability and use of antipsychotics and mental health problems are treated with more informal, community-led methods only ) than in developed countries.

In common law, black letter legal doctrine is an informal term indicating the basic principles of law generally accepted by the courts and / or embodied in the statutes of a particular jurisdiction.

While one-to-one bartering is practised between individuals and businesses on an informal basis, organized barter exchanges have developed to conduct third party bartering.

Bollywood is the informal term popularly used for the Hindi-language film industry based in Mumbai ( formerly known as Bombay ), Maharashtra, India.

Links in this article to specific axioms of set theory describe some of the relationships between the informal discussion here and the formal axiomatization of set theory, but no attempt is made to justify every statement on such a basis.

It can be done by systematically making explicit all the axioms, as in the case of the well-known book Naive Set Theory by Paul Halmos, which is actually a somewhat ( not all that ) informal presentation of the usual axiomatic Zermelo – Fraenkel set theory.

It is ' naive ' in that the language and notations are those of ordinary informal mathematics, and in that it doesn't deal with consistency or completeness of the axiom system.

However, the term naive set theory is also used in some literature to refer to the set theories studied by Frege and Cantor, rather than to the informal counterparts of modern axiomatic set theory ; care is required to tell which sense is intended.

Manufacturing output is varied but is not very extensive and is mostly conducted on a small-scale and informal basis.

The informal economy of the CAR is more important than the formal economy for most Central Africans.

This is a feature of African American Vernacular English but is also used by a variety of English speakers in informal contexts.

At least one additional, two-letter generic chemical symbol is also in informal usage, " Ln " for any lanthanide element.