A 'pea soup' of toxic blue-green algae has smothered the Baltic Sea from the Swedish to the German coasts this summer.
The bloom has been caused by pollution from industry and agriculture, and by rising sea temperature. Ecologists and politicians in both countries agree that the Baltic is in a state of acute environmental crisis.
Pressurised train carriages are being built to run on a new 1,100km long railway from Golmud in central China to Tibetan capital Lhasa. As it traverses the Himalayas, the line reaches an elevation of over 5,000m.