Mountains in Nepal lack snow this winter: 3 causes and 3 consequences you should know

Studies and observation have shown that snow cover in many parts of the world, including the Himalayan region, has been decreasing, particularly in the northern hemisphere. Many reports and pure observation both attest that the mountains in Nepal are now bare and black as opposed to the snow-capped panoramic view that Nepal enjoyed.

But, why? And, what does this mean?