Salt and the Global Water Cycle

For some reason, I thought that globally increasing ice melt would have a tendency to push the oceans toward the less salty side. After reading this Discovery News article, I found that my assumptions were not completely right. In fact, NASA will be launching a new satellite in several months that will monitor ocean salinity. Salinity and temperature of seawater are what regulate how dense the water is in our oceans. Circulating deep-ocean currents are propelled by variations in seawater density. Overall, the seawater is becoming slightly more fresh, but the Discovery News article says that subtropical regions are showing increased salinity.