The man and left his mark on Earth, has entered a new geological era – the Nation (Argentina)

This was determined by a group of scientist who published a paper in the journal Science

WASHINGTON Evidence that Earth has entered a new geological era due to the impact of human activity are already “overwhelming” according to a new study by an international team of scientists led by the University of Leicester (England).

The entry into this new geological era, the Anthropocene baptized, could have produced the middle of last century was marked by the massive consumption of materials such as aluminum, concrete, plastics and consequences of nuclear testing worldwide , according to research published in the journal Science.

To this must be added the increase in emissions of gases that have caused the greenhouse effect, as well as an unprecedented invasion of species in different ecosystems yours .

http://spaceplace.nasa.gov/review/volcanoes/earth.sp.jpg.

Los scientists suggest in their study how human actions are measurable registered in geological strata and to what extent this new geological era differs from the previous one, the Holocene, began 11,700 years ago, when there was the retreat of glaciers after the last glaciation.

In the Holocene human societies increased food production with the development of agriculture, urban settlements built and seized the planet’s water and energy resources, minerals.

Instead, the Anthropocene is a time of rapid environmental changes caused by the impact of an increase in population and consumption, especially after the “great acceleration” of the mid-twentieth century, the researchers said.

“Humans have long been affecting the environment, but recently there has been a rapid global spread of new materials like aluminum, concrete and plastic, which are making their mark in the sediments,” said the study Professor Colin Waters, the British Geological Survey.

Jan Zalasiewicz, a scientist at the University of Leicester is one of the leaders of the working group, said that the burning of fossil fuels has spread by airborne particles ash all over the world, to which must be added the radionuclides dispersed by the testing of nuclear weapons.

“All this shows that there is an underlying reality in the Anthropocene concept”, contributed by its Jan side Zalasiewicz, also of the University of Leicester and director called Anthropocene Working Group, composed of 24 scientists.

According to the study, humans have changed to such an extent the Earth system that have left a number signal in sediments and ice poles distinctive enough to warrant the recognition of the passage to a new geological era.

The Anthropocene Working Group raises this year to gather more evidence of this change to see if you can formalize this new era and provide recommendations.

EFE