Staff of the teknoloġija2 News
12 December 2018 13:00 IST
Since 1800, humans have changed trend & # 39; natural cooling and long to go back at least 50 million years. And all that took us, according to the study, was & # 39; two centuries.
The Earth's climate in 2030 will resemble the middle Pliocene period of the World, which took nearly 3 million years ago in & # 39; geological time. If our emissions continue unchecked, our climate by 2150 compared with the period & # 39; hot and almost free of ice Eocene 50 million years ago.
"If we think about the future in & # 39; past time, where we will be going through the unknown territory for human society," Kevin Burke, the main author of the study and researcher paleoekologiku at the University & # 39; Wisconsin-Madison, said university press.
"We encourage them to many dramatic changes on frame & # 39; extremely fast time, by Reversing planetary pattern & # 39; cooling f & # 39; material & # 39; centuries".
All species roaming the Earth and its oceans swimming ancestor had survived both the Eocene and the Pliocene eras. If human beings and flora and fauna of today and the near future to adapt to these changes is relatively rapid certainty.
Rate & # 39; rapid change seems to be faster than anything in her life on the planet was before.
"We can use the past as a yardstick to understand the future, which is so different from anything we have in our lives", said paleoekologu John "Jack" Williams, geography professor at the University & # 39 ; Wisconsin-Madison, said the picture.
"People have a hard time projecting x & # 39; it is the world will be & # 39; five or 10 years from now. This is a tool to predict that – as we move & # 39; below f & # 39; those paths and using the & # 39; geological analogues in depth by the World story to think about changes in time. "
The geology studies examine radioactive depth of the ancient World components accumulated on collection & # 39; sample floor today the formation and conditions of & # 39; that period & # 39; geological time. It is believed that the soil and organic matter from the Pliocene differ from those in the Eocene era in its deep geological makeup.
The models made in the study show that these first climates emerged first in the center of the continent and then spread & # 39; out to the ocean. The increase in temperature, increasing precipitation, the melting ice caps and temperate climates near the poles of the Earth are changes that are common to the Pliocene and the present day.
The findings of the study have greater implications for geologists, scientists of climate change and the World historians, but researchers find a good balance between optimism and alarm.
On the one hand, is run in the World & # 39; unknown territory during the life & # 39; two or three generations to come. On the other hand, life has shown resistant.
"We have seen great things happened in Earth history – new species evolved, life persists and the species survive. But many species will be lost, and we live in & # 39; this planet," Williams said the picture.
"These are things to be concerned about, so this work indicate how we can use our history and the history of the World to understand the changes today and how we can best Adapting".