The average daily

temperature of the ocean

at the North Pole has

increased during the past

50 years.

At the start of the 20th century, temperatures were about 4.5°F cooler. The temperatures of the arctic are confronting the heatwave, very unusual for Arctic standards.

Explanation:

These changes in temperatures can be "grateful" to climate change. The climate changes will continue with raising the temperature in the Arctic. These climate changes are so usual at this moment on the Earth, that in a few decades people will be used to heat.