Ganges Basin (112,490 km²), West Bengal (71,485 km²), Haryana (34,341 km²), Himachal Pradesh (4,317 km²) , Delhi, Arunachal pradesh(1,484 km²), the whole of Bangladesh, Nepal and Bhutan. Several tributaries rise inside Tibet before flowing south through Nepal. The basin has a population of more than 500 million, making it the most populated river basin in the world. The basin comprises semi-arid valleys in the rain shadow north of the Himalaya, densely forested mountains south of the highest ranges, the scrubby Shiwalik foothills and the fertile Gangetic Plains. Central highlands south of the Gangetic Plain have plateaus, hills and mountains intersected by valleys
Yukon River Basin approximately in the summer and in the winter. However, the region has some of the most extreme temperature changes for an area that is located in a continental zone. Recent studies indicate that temperatures have been steadily rising throughout the region since the 1840s. Climate change has been a serious, on-going issue around the Yukon River Basin and other surrounding areas. With drier, hotter temperatures, there have been more natural problems like forest fires and melting permafrost, which leads to changes in water flows. The recent change in climate has also taken a tole on the Yukon River basin, such