On this day, in 1861, Irish scientist John Tyndall read his paper about carbon dioxide at the Royal Society at the annual Bakerian lecture. Tyndall was not, we now know, the first person to point out what he called carbonic acid had greenhouse water warming potential. That honour belongs to Eunice Foote in the United … Continue reading  Feb 7, 1861- 161 years ago, a scientist identifies carbon dioxide as a greenhouse gas