16.As it makes its decent, they both melt into a raindrop as it's entering the lower levels of the atmosphere sleet will refreeze into basically an ice pellet.
18." The bears face an ever longer fasting period before the ice refreezes and they can head back out to feed, " Steven Amstrup, who conceived the study and is chief scientist of Polar Bears International, told AFP.
19.There are reports of igloos losing their insulating properties as tile snow drips and refreezes, of lakes draining into the sea as permafrost melts, and sea ice breaking up earlier than usual, carrying seals beyond the reach of hunters.