Alaska’s rivers are turning rust-orange and scientists say the cause has been frozen for thousands of years | World News
On a late-summer flight over northern Alaska’s Brooks Range, stretches of river that should look like glass suddenly appear stained the colour of iron oxide. From above, they resemble rust spreading through a cracked engine block. On the ground, the change is even more unsettling: clear tributaries turning opaque orange within a few bends, with…