Confirmation of the energy imbalance of the Earth

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US researchers published in the journal Science the results of simulations of the evolution of Earth's climate over a period of a little over a century (from 1880 2003 to) performed using the computer model of the Goddard Institute for space Studies (GISS).

Playing mainly on the increase in greenhouse gases of anthropogenic origin (carbon dioxide, methane,
nitrous oxide, chlorofluorocarbons, etc.), the team was able to simulate the current imbalance in the energy balance of the Earth, simulation consistent with the known data.

Now, our planet would absorb 0,85 (+ or - 0,15) watt of solar energy per square meter more than it would reflect. This figure, corroborated the model used by temperature measurements in depth and sea levels over the past 10 years is worrying. According to NASA scientists, Columbia University and Lawrence Berkeley National Laboratory, even if concentrations of greenhouse gases were stabilized today, the climate would win anyway 0,6 ° C by the end of the century due to the thermal inertia of the oceans, slower to warm up. Moreover, it is expected an acceleration of the melting of land ice and rising sea levels, already initiated.

Currently, this level rises at a rate of centimeters per decade 3,1 twice as high as a hundred years.

LAT 29 / 04 / 05 (Scientists find climate change 'smoking gun')



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