Arctic sea ice is turning green

Arctic sea ice is turning progressively greener, and for years now, scientists couldn’t for the life of them figure out what was going on.

They knew the green had to come from blooms of microscopic marine plants called phytoplankton growing under the sea ice, but that didn’t make sense – phytoplankton need light to photosynthesise, and it should have been far too dark for them to survive down there, let alone thrive.

Now, an international team of researchers has cracked the mystery.

via The Arctic is turning green at an alarming rate, and scientists finally know why – ScienceAlert.