Weather Blog Brilliant Bloom in the Baltic Sea An explosion in the numbers of cyanobacteria transformed the Baltic Sea into a swirling canvas of green in summer 2025. Read More… About Author OTW Observer See author's posts Post navigation Previous Whirling Dust and Ancient FloodsNext A BIG Moment for Apollo 11 Related Stories A Most Unusual Lake Weather Blog A Most Unusual Lake March 11, 2026 Shades of a Lunar Eclipse Weather Blog Shades of a Lunar Eclipse March 10, 2026 Lake Coatepeque Weather Blog Lake Coatepeque March 9, 2026