LONDON , England ( CNN ) -- Despite the fact that some of the effects of climate change are still imperceptible to all but the most highly trained eyes , there can be no doubting the alarming picture painted by glacier melt . The iPhone application includes audio , video , slideshows and a documentary film . As these rivers of ice retreat back up the valleys they carved out , so scientists ' knowledge of climate change advances , in turn helping us recognize the signs of a warming world . Now a new iPhone app is helping visitors to the Swiss Alps understand how climate change is altering the landscape . Developed by the Oeschger Center for Climate Change Research at the University of Bern in Switzerland and Swiss software company , Texetera , the Jungfrau Climate Guide is an interactive guide to glaciers and climate change . For a fee of 20 CHF ( around $ 19 ) visitors to the Jungfrau Alpine region can hire an iPhone loaded with the app . Kaspar Meuli , Head of Communications at the Oeschger Center , told CNN what people can expect from the device . `` There are many different levels to the application . Audio pieces -- like the ones you might expect to find in a museum guide which guide you through paths on seven different trails . '' At different stages along each trail , the phones -- aided by the built-in GPS -- alert visitors to particular points of interest by sounding a yodel . `` For example , '' Meuli explained , `` if you are standing in front of a glacier you will be told why it is no longer as big and provided with images of what it looked like 100 years ago , and what it might look like in the future . '' There are more than 40 audio guides , plus a range of multimedia offerings including videos , slide shows and a documentary film . There are also sections which describe the various flora on the trails along with information on biodiversity . `` Everyone who tries it is quite fascinated by it , '' Meuli said . `` People are realizing that climate change is real when they see the consequences . '' The Jungfrau region is home to the upper and lower Grindelwald glaciers , which have retreated rapidly in recent years . In 2008 , the World Glacier Monitoring Service reported that glaciers in some regions of the world were melting away at a rate of more than a meter a year recently . Responding to the 2008 report , Achim Steiner , Executive Director of the U.N. Environmental Program , said : `` Millions , if not billions , of people depend directly or indirectly on these natural water storage facilities for drinking water , agriculture , industry and power generation . '' `` There are many canaries emerging in the climate change coal mine , '' Steiner added . `` The glaciers are perhaps among those making the most noise . '' In the future , Meuli says the University hopes to produce features that can be used by teachers in preparation for taking classes to the glaciers .
New iPhone app is helping visitors to Swiss Alps understand glacier melt . The Swiss Climate ##s app offers audio , video and slide shows . Created at University of Bern the app examines retreat of Grindelwald glaciers .