Weather Blog Filling an Air Pollution Data Gap Many cities have shortages of air quality monitors. NASA scientists have developed a tool called GEOS-CF that can help. Read More… About Author See author's posts Post navigation Previous Earthquakes in the Caribbean…Next BBC’s London weather forecast predicts the exact hours when sleet will fall in city as temperature plummets below 0C Related Stories Tropical Storm Arthur Weather Blog Tropical Storm Arthur June 19, 2026 Desert Field Test With NASA Advanced Rover Prototype Weather Blog Desert Field Test With NASA Advanced Rover Prototype June 18, 2026 El Niño Is Underway Weather Blog El Niño Is Underway June 18, 2026