Answer: icecaps

AnswerCrossword Clue
ICECAPS

Polar features, so far

ICECAPS

Melting masses

ICECAPS

Features of Mars and Earth

ICECAPS
Pole features
ICECAPS
Polar coverings
ICECAPSMartian features
ICECAPSMartian topographical features
ICECAPSThese cover the poles.
ICECAPSPolar sights.
ICECAPSPolar features
ICECAPSSights on peaks
ICECAPSLarge glacial formations
ICECAPSMars sightings
ICECAPSOnes at the pole positions?
ICECAPSGlobal warming concerns
ICECAPSCold covers
ICECAPSArctic coverings
ICECAPSAntarctica masses
ICECAPSGlobal warming casualties
ICECAPSKenai Fjords, et al.
ICECAPSPole toppers
ICECAPSThe ends of the earth