What+did+we+learn+1

We learn"t that global warming is melting the glaciers where the polar bears live. Without the ice the polar bears won't be able to hunt for their food. The bears hunting season is also become short as the glaciers melt. Penguins are also in danger. Out of the 17 penguins in the southern hemisphere 11 are endangered or threatened. The weather change is effecting food supplies and mating seasons for the penguins.