The mine, along New York’s Cayuga Lake, processes salt used for road treatment.

The mine, along New York's Cayuga Lake, processes salt used for road treatment.

Rivers and lakes nearby will gradually become contaminated.

Most of these operations draw irrigation water from local rivers or lakes.

Elsewhere in Antarctica, Russian researchers boast of their recent discovery of a freshwater reserve the size of Lake Ontario after drilling through miles of solid ice.

So what factors, at the community level, do predict if poor children will move up the economic ladder as adults? What explains, for instance, why the Salt Lake City metro area is one of the 100 largest metropolitan areas most likely to lift the fortunes of the poor and the Atlanta metro area is one of the least likely?Harvard economist Raj Chetty has pointed to economic and racial segregation, community density, the size of a community's middle class, the quality of schools, community religiosity, and family structure, which he calls the single strongest correlate of upward mobility.

Chetty finds that communities like Salt Lake City, with high levels of two-parent families and religiosity, are much more likely to see poor children get ahead than communities like Atlanta, with high levels of racial and economic segregation.

The curtains were never drawn, even at night, so guests got a view of the lake and fountains outside which were lit up at night – a very attractive sight.

At the base of a mountain in Tanzania Gregory rift, Lake Natron burns bright red, surrounded by the remains of animals that were unfortunate enough to fall into the salty water.

Chetty finds that communities like Salt Lake city, with high levels of two- parent families and religiosity, are much more likely to see poor children get ahead than communities like Atlanta, with high levels of racial and economic segregation.

fish have a refuge in the streams and can expand into the lagoons when the lake is low and the lagoons are separate, Harper said All the lagoons join when the lake is high and fish must retreat to their stream refuges or die.

For now, though, life prevails—even in a lake that kills almost everything it touches.

Once every three or four years, when conditions are right, the lake is covered with the pink birds as they stop flight to breed.

Otherwise, no fish are able to survive in the naturally toxic lake.

Some fish, too, have had limited success vacationing at the lake as less salty lagoons form on the outer edges from hot springs flowing into Lake Natron.

The Tanzanian government has once again started mining the lake for soda ash, used for making chemicals, glass and detergents.

Three-quarters of the world's flamingos fly over from other salt lakes in the Rift Valley and nest on salt-crystal islands that appear when the water is at a specific level一too high and the birds can't build their nests, too low and predators can move bri

Todd Park, a local detective, said the method has helped him learn more about an unidentified woman whose skeleton was found near Great Salt Lake.