LiveScience: The Colorado River, the Yellow River in northern China, the Ganges in India and the Niger in West Africa are losing water, in some cases because of the effects of climate change, a new study finds. The study examined stream flow in 925 of Earth’s largest rivers, and found significant change in about one third of them over the past 50 years. These rivers, all key sources of water for the regions they flow through, were found to be funneling less water through their …