NASA's study shows that the earth's heat retained in the atmosphere has nearly doubled since 2005, contributing to heating weather.

The amount of heat that the earth retained in the atmosphere is unprecedented, Norman Loeb, the US Aviation and Universe Agency Scientist (NASA) and the main author of the study announced last week in the magazine

Using satellite data, the team calculates energy imbalance, ie the difference between the energy that the earth absorbed from the sun compared to the heat that it radiates or reflects back to space

Earth photos from the International Space Station flying on the Atlantic Ocean, Southwest South Africa.

Stuart Evans, climate scientist at Buffalo University, said when this imbalance rate was positive, meaning that the earth absorbs more heat than radiating heat, which is the first step to the whole phenomenon

It was an Earth sign with energy, Evans said.

It is a huge amount of energy, Gregory Johnson, Hai Duong houses at the Pacific Marine Environmental Laboratory of the American Oceania (NOAA), co-author of the study, said.

Johnson said this heat increase was equivalent to 4 atomic bombs dropping Hiroshima in every second, or every person on the earth turned on 20 electric kettles at the same time.

Earth receives about 240 W heat from every m2.

The ocean absorbs most of that heat, about 90%.

Loeb called this imbalance was a nail to the coffin.

Lemaire channel, Western peninsula west March 3, 2016.

The biggest question is what motivates the earth to increase heat absorption.

They have combined together, Loeb said, said further research to identify factors.

The period of study coincides with climate fluctuations that can play an important role in increasing heat, including strong El Nino phenomenon from 2014 to 2016, leading to abnormal seawater.

But Johnson said this could not refer to human behavior.

Kevin Trenberth, scholar at the National Atmospheric Research Center, said the research results did not surprise the current climate change, but the 15-year period is not enough to create a trend.

Certainly need to observe 10-15 years to see how this happens, he said.

The more observed, we are more certain about its trend, he explained.

Tracking the earth's temperate imbalance also helps scientists better understand climate change, Johnson said.

Trenberth said that regardless of the reason to promote earth energy imbalance, this ratio was a global impaired positive level.

I hope the Earth will not continue to be heated in this direction, Loeb said.