Last year I showed these two slides so that demonstrate that the arctic ice cap, which for most of the last three million years has been the size of the lower 48 states, has shrunk by 40 percent.
Anul trecut am aratat aceste doua diapozitive pentru a demonstra ca intreaga calota polara care in marea majoritate a ultimilor 3 milioane de ani a fost de dimensiunea a 48 de state de marime mica, s-a micsorat cu 40% .