Mckibben

Environmentalist and writer Bill McKibben is a leader of the movement to stop investments in fossil fuels.

Source: tatoeba (8577879)

During those months, Dorothy McKibben would greet and often befriend some of the great scientific minds of the 20th century—from promising young graduate students like Richard Feynman to illustrious nuclear pioneers like Enrico Fermi.

Source: tatoeba (12111867)