Himalayan Snow cover and Glaciers are a major source of water for numerous perennial rivers that originate from the region, especially Indus, Ganga, Brahmaputra, and Yamuna that also flows through the major cities of Asia (India, Nepal, Pakistan, and Bangladesh). The Himalayan and Tibet Glaciers, one of the largest bodies of ice and fresh water resource outside of the polar ice caps, are showing signs of melting across the mountain range which is visible in snapshots obtained from Landsat series and ASTER images since 1970s. Recent studies point towards the increasing influence of anthropogenic emissions such as soot (black carbon), COx, NOx, SOx, various gases and natural (desert dust) pollutants on the snow cover, albedo, energy budget (shortwave and long wave radiation), sunshine duration (solar dimming), and long term decadal changes in precipitation and tropospheric temperatures (using MSU and models, 1979-2012). The long range transport of desert dust, from the western sources, through the industrialized regions and major cities leads to a complex mixture of aerosols before reaching the high altitude Himalayas. The model (DREAM), ground (AERONET), and space observations (MODIS and CALIOP) have been used to study the vertical profiles as well as column properties of aerosols in the atmosphere. The MODIS (Terra and Aqua, 2000-2010) derived maximum snow cover extent have been used to track the snow cover over various major Himalayan and Tibet Glaciers at 500 m grid resolution. The level 2 (10 km grid) aerosol optical depth (AOD) derived using dark-target and deep-blue algorithm have been used to show the transport of desert dust over high altitude (over 4000 m) Himalayas and Tibet region during the summer season. The results are supported by visible images (surface reflectance at multiple bands) at 500 m grid resolution from MODIS Terra and Aqua. Several CALIPSO derived vertical profiles of the atmosphere as well as MODIS Terra and Aqua observations during the pre-monsoon dust storm season show that dust storms can reach high altitude Himalayas (~4-7 km above the mean sea level). This is also evident from the results obtained by analysis of ice-cores. The mix of strongly absorbing aerosols (black carbon) and dust is stimulating net atmospheric heating due to the trapping of solar radiation especially in the lower and middle troposphere, as seen in the long term trend from MSU data (1979-2012). The tropospheric warming of the IG-Himalayan-Tibet region, during December to May, is more prominent over the western region compared to the eastern region.