340
Warmer (6 photos)
Global warming brings great harm to the population of polar bears. Due to the melting of glaciers, they can no longer migrate to swim on the ice in a familiar place, and forced to seek new ways of livelihood. Scientists are interested in this problem, for they mark a population of white bears in order not to lose this kind of a map of the planet. As it happens ...
Then make measurements, install the sensor and even paint on the back of a room for visual observation.
