In about twelve years, Earth's climate is similar to the middle of Pliocene, when it's time; going back to over 3 million years, according to a new study by American and British scientists.
In particular, the paper gives warning if humanity does not; reducing greenhouse gas emissions before the Year of 2150, the weather could have compared the Earth to the Eocene period, 50 million years ago, when the temperature 13 higher degrees and almost ice.
"We're moving to changes really amazing in a very short time, to turn trends Flaming a planet in some centuries, "warning John & Jack MacUilleam, Professor of Geography at the University of Wisconsin-Madison, in the United States." If we think about the future in the past, we will country without study for human society, "he says.
An increase of 13 degrees to 2150?
The researcher and his colleagues investigated what was similar future climate estimates He appeared in the fifth Assessment Report of the Inter-governmental Climate Change Panel and various times of geological history such as the Early Eocene, the Central Pliocene, the last intersection (129,000-116,000 years ago), the Mid-Holocene (6,000 years ago), the pre-active period (by 1850 AD) and the beginning of the 20th century.
They also used the Tional Concentration 8.5 & # 39; (RCP8.5), which represents the future climate climate we do not mitigate distributions of greenhouse gauges, and also RCP4.5, a situation in which humanity gradually reduces greenhouse gases.
In both projections the Earth seemed to be similar to the middle of Pliocene in 2030 (under RCP8.5) or in 2040 (under RCP4.5). However, in a longer period and under the circumstances of RCP8.5, the weather is maintained; going up to start it like the Eocene in 2100,Achieving more similar things this time for the year 2150.
In general, the temperature was between 1.8 and 3.6 degrees higher than today, and during Eocene the average temperature up to 13 higher degrees. In addition, the sciences say that all the species on Earth that had a former ancestor lived in the Eocene and Pliocene, although it is still seen to change people and plants and animals these great changes.