Learn why climbers rely on the Alpine Butterfly Knot and how to tie it correctly. Discover its key advantages for load ...
There's increasing concern about PFAS, the substances commonly called forever chemicals found throughout the environment. Now volunteers in Minnesota are collecting pine needles throughout the state ...
Volunteers in Minnesota are collecting pine needles to help researchers determine how PFAS -- the substances commonly called forever chemicals -- find their way into water, soil and air.
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