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Earth's energy imbalance has been in a downward trend for are long as the CERES Satellites have been active (~Year 2000).
While the imbalance is still not zero, it is trending in that direction.
Decadal Changes of the Reflected Solar Radiation and the Earth Energy Imbalance
" The EEI shows a trend of −0.16 ± 0.03 (1 σ) W/m2dec. If the RSR ageing correction uncertainty (Section 4)
is taken into account the uncertainty becomes ±0.11 W/m2dec. This means that the EEI seems to have a decreasing trend. "
A quick calculation says that the .8 W m-2 of imbalance would drop to zero is about 50 years, if the trend from the last 20 years continues.
In the interim, we have to consider that warming is tied directly to Earth's energy imbalance, so at some point reducing the energy retained,
will move temperatures in the other direction.
While the imbalance is still not zero, it is trending in that direction.
Decadal Changes of the Reflected Solar Radiation and the Earth Energy Imbalance
" The EEI shows a trend of −0.16 ± 0.03 (1 σ) W/m2dec. If the RSR ageing correction uncertainty (Section 4)
is taken into account the uncertainty becomes ±0.11 W/m2dec. This means that the EEI seems to have a decreasing trend. "
A quick calculation says that the .8 W m-2 of imbalance would drop to zero is about 50 years, if the trend from the last 20 years continues.
In the interim, we have to consider that warming is tied directly to Earth's energy imbalance, so at some point reducing the energy retained,
will move temperatures in the other direction.