Whose work first measured the height of Chimborazo and helped compare mountain altitudes worldwide?

During his South American travels, Alexander von Humboldt made detailed measurements of mountains including Chimborazo in present-day Ecuador. Although Chimborazo was later shown not to be Earth’s highest peak above sea level, Humboldt’s work was crucial in comparing mountain elevations and climates scientifically. He also showed how plant life changes with altitude, creating a vertical geography of the Andes. His studies linked mountains to climate, ecology, and human settlement.