Every year about 27.7 million tonnes of Saharan dust cross the Atlantic on the trade winds, and NASA’s CALIPSO satellite has traced it fertilising the Amazon with roughly the same quantity of phosphorus the rainforest loses to riversJuly 28, 2026
When Clair Patterson set out in 1948 to measure the age of the Earth using lead in meteorites, his samples kept coming back contaminated, and the seven-year detour he took to find the source ended with him almost single-handedly forcing leaded gasoline out of American cars by 1986. Saving Tips June 4, 2026 In 1948, Clair Patterson was a graduate student at the University of Chicago with a deceptively simple assignment from his…
