The No Snow or Glaciers rebounding Alps

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Though the average hiker wouldn't notice, the Alps and other mountain ranges have experienced a gradual growth spurt over the past century or so thanks to the melting of the glaciers atop them. For thousands of years, the weight of these glaciers has pushed against the Earth's surface, causing it to depress. As the glaciers melt, this weight is lifting, and the surface slowly is springing back. Because global warming speeds up the melting of these glaciers, the mountains are rebounding faster. end quote from:http://www.livescience.com/11350-top-10-surprising-results-global-warming.html

My question is this: When ice and snow melt all over the earth including at it's poles during certain seasons of the year, this changes the balances of the weight of the world in various ways which logically will change the shape of the earth in various ways because the earth is like a malleable top spinning in space made of clay. If this is true then what effects can we expect on speed of rotation, earthquakes and great shifts of water that will be the result of all this melting ice and snow during different seasons worldwide. For example right now, the north pole region is completely melting out between September and October of most years. What is happening with the South Pole  would logically happen six months later. However, how do these massive changes in weight displacement affect everything that lives on earth in the short term and long term?