In the wild, remote expanse of northern Alaska, rivers that once shimmered with crystal-clear water are now taking on a disturbing orange hue. This acid then mixes with the rivers, leaching heavy metals into the water, which eventually turns it an unsettling orange color. Studies have shown that at least 75 rivers and streams across northern Alaska are now exposed to similar contamination. Researchers warn that if this process continues, more rivers, not just in Alaska but across the Arctic, could undergo the same degradation. The environmental and economic consequences could be severe, impacting ecosystems and the livelihoods of local populations who depend on these rivers.