Prince Karim Al-Hussaini, Aga Khan IV, the 49th hereditary Imam of the Shia Ismaili Muslims, passed away on February 4 at the age of 88 in Lisbon, surrounded by his family.

Yusuf Khan is a reporter covering sustainability at The Wall Street Journal in London. His main beats are metals, agriculture and heavy industry and how they relate to ESG and the energy transition.