While camping may appeal to some, scientists recently took the pastime to punishing limits. Enduring the bitter Arctic cold out on the sea ice, they were part of a major international effort to ensure ESA’s CryoSat satellite is delivering a true picture of Earth’s changing ice.
View: Photos of the Day: ESA–NASA Team Maps Polar-Ice Thickness
Considered a barometer of climate change, diminishing polar ice has been a hot topic for a number of years. _