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Melting glaciers could be triggering a ‘feedback process’ that causes further climate change, according to new research. An international research team led by the University has for the first time linked glacier-fed mountain rivers with higher rates of plant material decomposition, a major process in the global carbon cycle. As mountain glaciers melt, water is channelled into rivers downstream. But with global warming accelerating the loss of glaciers, rivers have warmer water temperatures and are less prone to variable water flow and sediment movement. These conditions are then much more favourable for fungi to establish and grow.  Fungi living in these rivers decompose organic matter such as plant leaves and wood, eventually leading to the release of carbon dioxide into the air. The process – a key part of global river carbon cycling – has now been measured in 57 rivers in six mountain ranges across the world, in Austria, Ecuador, France, New Zealand, Norway and the Unit

United statesUnited kingdomNew zealandNorway generalUniversity of alaska southeastLes alluesAlex dumbrellLee brownKate randallScott tiegsSophie cauvy frauniUlvik fjellstyreKirsty matthews nicholassJonathan carrivickIan rosserSchool of geography