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Salju Semangka Turun di Montana, Amerika Serikat Sebuah fenomena aneh terjadi di Gletser Grinnell di Montana, Amerika Serikat. Salju yang mencair di area tersebut berwarna merah sehingga dinamakan salju semangka.
Kubangan air berwarna merah tua terlihat di celah-celah bebatuan. Lebih aneh lagi, air tersebut memiliki bau seperti semangka manis.
Dikutip dariInternational Business Times , penyebab salju berwarna merah ini adalah alga bernamaChlamydomonas nivalis . Kandungan pigmen merah yang ada dalam alga ini membuat salju berwarna merah.
“Pigmen tersebut melindungi alga dari radiasi matahari dan mempermudah penyerapan panas matahari sehingga menyebabkan salju meleleh,” menurut laporan yang ditulis harianMetro .
Alga tersebut sebenarnya berwarna hijau namun karena dilindungi oleh lapisan pelindung sehingga membuatnya berwarna merah.
Fenomena alam ini ditemukan oleh Joe Giersch, entimolog dari United States Geological Society ketika ia mengunjungi gletser tersebut. Giersch kemudian mengunggah gambar kubangan yang disebabkan oleh salju semangka itu di internet
Tampaknya, salju semangka akan lebih sering terlihat pada saat musim panas karena adanya peningkatan suhu pada daerah tersebut. Alga tersebut tumbuh ketika cuaca hangat, dan tidak akan tumbuh di musim dingin.
“Kalau sepatumu menginjak kubangan ini, warna sepatumu menjadi pink,” menurut Weather Network seperti dikutipMirror .