I’ve just discovered the CIA World Factbook. It’s full of useful information, like the following, about Antarctica-
Land use:
arable land: 0%
permanent crops: 0%
other: 100% (ice 98%, barren rock 2%) (1998 est.)
Irrigated land:
0 sq km (1998 est.)
(And yes, as suggested in Spooks last night, the title is the comparative size of our great land.)