The heat wave gripping large stretches of Europe has already been blamed for deadly forest fires and crop failures. Now, freshwater fish could be its next victims. Some regions in Germany sweltered as the mercury hit 39C, and the German Meteorological Office said the country’s all-time record of 40.3C could be topped this week.
A research expedition in the Baltic Sea has yielded spectacular photos of surprisingly colourful life below the calm surface. But the images also reveal a more sinister reality -- the alarming spread of dead zones threatening aquatic life.