NASA satellite imagery could help predict volcanic eruptions. 🌋 Elevated carbon dioxide (CO2) is one of the earliest signs of a coming eruption, though it’s difficult to detect from space. However, that extra CO2 makes plants around the volcano greener and more lush—enough that it’s visible in satellite images! 🌴🌳 To confirm the correlation between tree leaf color and CO2 from volcanic magma, scientists measured CO2 levels and collected leaf samples near an active volcano in Costa Rica. The w