Last year, when people started complaining that spray from Olafur Eliasson’s waterfalls was prematurely turning trees brown, officials assured everyone the salty, East River mist wouldn't cause any "long-term danger." (Though the Public Art Fund did pay to have the salt regularly cleaned off, and the waterfalls operating hours were reduced.) Well, now it looks like some of the damage may indeed have been permanent. Scott Stamford, general manager at the River Cafe, recently showed the Brooklyn Paper some sickly-looking trees on the property, which is right by the Brooklyn Bridge. Though other trees nearby are already budding, three weeping birches are showing "no sign of life at all."