The US Geological Survey has warned that two-thirds of the world's polar bear populations could be lost by the mid-century as sea ice continues to retreat.
When he's done something wrong, he retreats to his bedroom.
The army retreated from the foreign lands.
European Council adopted something of a retreat from this for the first time in March.
When she came towards me shouting, I retreated / When he's done something wrong, he retreats to his bedroom
to retreat into a fantasy world
The enemy behind us presently exists solely to cut off our retreat.