BISMARCK, N.D.- A photo of Swedish climate activist Greta Thunberg at a Native American reservation in North Dakota has been archived at the Library of Congress in Washington. Photographer Shane Balkowitsch preserved the image on a glass plate and titled it “Standing For Us All.” The method known as “wet plate collodion” involves wetting glass with various chemicals before inserting the plate into a camera and developing the photo. Balkowitsch told the Bismarck Tribune that it’s his “most important work to date.” The photo shows 16-year-old Thunberg looking into the distance during a visit to the Standing Rock Sioux Reservation. She shared it on Twitter when she left North America on Nov. 13. Another image, a close-up Thunberg’s face, will be featured at the Swedish History Museum in Stockholm….