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Foote's 1856 paper
Foote's 1856 paper

Eunice Newton Foote (1819–1888) was an American inventor, women's rights campaigner, and the first scientist to conclude that rising levels of carbon dioxide (CO2) could impact climate. Born in Connecticut, she was raised in New York at the center of movements such as the abolition of slavery, anti-alcohol activism, and women's rights. The Troy Female Seminary and Rensselaer School gave her a broad education in science. After marrying an attorney in 1841, Foote settled in Seneca Falls. She signed the Declaration of Sentiments and edited the 1848 Seneca Falls Convention's proceedings. In 1856 she published a paper (pictured) demonstrating the absorption of heat by CO2 and water vapor, hypothesizing that changing amounts of atmospheric CO2 would alter the climate. Foote died in 1888; her contributions were largely unknown before being rediscovered by women academics in the late 20th century. The American Geophysical Union instituted the Eunice Newton Foote Medal for Earth-Life Science in 2022. (Full article...)

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March 8: International Women's Day; Aurat March in Pakistan

Anne of Great Britain
Anne of Great Britain
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Hayden Bridge

The Hayden Bridge is a wrought-iron truss bridge that was manufactured by the Phoenixville Bridge Works in the U.S. state of Pennsylvania. It was built in 1882 and was initially located near Corinne, Utah, crossing the Bear River as part of the first transcontinental railroad. In 1901, the bridge was moved more than 1,000 miles (1,600 km) and reassembled at its present location, crossing the McKenzie River in Springfield, Oregon, where it served as part of the Marcola line for the distribution of lumber. It later closed down due to the closure of the area's lumbermills, until it was converted into a pedestrian bridge in 2019. It is the oldest intact bridge in the state of Oregon. This photograph of the Hayden Bridge was taken as part of a 1990 Historic American Engineering Record survey.

Photograph credit: Historic American Engineering Record; restored by Jeff G. and Bammesk

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