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National Geographic explorer and grantee Gregg Treinish wants everyone to know about the hidden toxic cost of synthetic fabrics. Tiny, invisible microplastics are entering our waterways straight from our washing machines. About 2,000 synthetic particles are released from washing a single polyester fleece jacket. All clothing items—including cotton and wool—shed micro-fibers when washed, but the natural fibers biodegrade. Synthetic particles don't degrade and can absorb toxins while traveling through the waterways. If they're eaten by small organisms, such as fish, they can bioaccumulate and end up on our dinner plates. Read more about how you can minimize microplastics' impact on the environmentMore from Gregg TreinishClick here to read more about microplastics in the ocean

j6oWE TIL that Chris Farley was to be the original voice of Shrek, with at least 85% of dialogue already recorded
16DwX TIL the liquid ban on planes wasn’t caused by 9/11 but by British MI5, who foiled a 2006 terror plot involving liquid explosives disguised as soft drinks.
p8dOp TIL that Matthew McConaughey has been teaching filmmaking at UT Austin since 2016.
oEKL TIL – an Amish inventor developed a solar-powered electronic automatic-start kit for Honda engines that are used as part of off-grid well-pump systems.
dMld TIL there is a group of people who believe that the earth is hollow, and are planning an expedition to prove it.