00:00 The temperature of Lake Geneva's water has hit record levels and is rapidly rising according
00:07 to a new research from the University of Lausanne.
00:10 The annual average has risen to more than 13.5 degrees.
00:15 Scientists say a seasonal phenomenon called winter mixing, in which oxygen-rich surface
00:20 water blends with deep water, has not been seen for years.
00:25 "Globally, we reoxygenate up to 170 metres of bottom, the real question is below.
00:30 It's been 12 years since the bottom of the lake has not been reoxygenated by winter mixing."
00:37 While glaciers in the surrounding Alps are melting at record rates, Lake Geneva's water
00:42 temperatures are rising four to five times faster than those of the oceans.
00:47 But they too are seeing new peaks.
00:50 The EU's Copernicus Climate Change Agency said temperatures in the world's oceans reached
00:55 a record in February.
00:57 [Whoosh]
Comments