Graphic Reflections

Up till a few years ago in North India (from my experience of living in the cities of New Delhi and Jaipur), winters used to start from late October or early November and continue well into March. Winters here now start late in November and end as early as last week of February. The reason: Global Warming? Increasing vehicular and industrial emissions? Loss of trees? Have you felt the same in your area, have winters shrunk?