Which of the following are overwhelming evidence of climate change?

A. In Alaska, Western Canada and Eastern Russia average temperatures have increased by over 4°C during past 50 years.

B. Tropical regions have warmed much faster than rest of the world.

C. Mount Kilimanjaro has lost 85% of its famous ice cap since 1915.

D. Over the last century the average global temperature has climbed 0.6 °C.

Choose the correct answer from the options given below: