In a saucepan, combine orange juice, water, sugar, ginger and salt and bring to a boil. Reduce to a simmer and add pears. Simmer until just tender, about 8 minutes. Remove pears and set aside.

Bring mixture to a boil and reduce until a little thicker, about 10 minutes. Strain sauce through a fine mesh sieve.

Serve each pear half with a scoop of ice cream and a few tablespoons of sauce.