Climate change has a serious impact on the world’s fresh water supplies, especially in many developing countries that are already struggling with scarce water resources and increasing water conflicts and where water security and water equity are burning issues on the agenda of national governments and local authorities. As discussed recently in the Latin American Research Review , the problem is particularly urgent in mountain regions where fresh water supply mainly comes from glacial melt water.
If you have heard anything about the Paris climate conference—formally known as the 21st Conference of Parties, or COP21—then you know that lots of people seem very excited about the recently adopted 2 degrees Celsius agreement. “I believe this moment can be a turning point for the world,” said U.S. President Barack Obama. U.N. Secretary-General Ban Ki-moon declared, “What was once unthinkable has now become unstoppable.”1,2 But what does this number mean?