President-elect Joseph R. Biden Jr. on Tuesday introduced several potential cabinet-level members of his foreign policy and national security team, including former Secretary of State John Kerry as the first-ever climate change czar.

In addition to proposing Kerry as special presidential envoy for climate, Biden’s nominees as of Tuesday included National Security Advisor Jake Sullivan, Secretary of State Antony Blinken, Secretary of Homeland Security Alejandro Mayorkas, Director of National Intelligence Avril Haines and U.S. Ambassador to the United Nations Linda Thomas-Greenfield.

The positions for Kerry and Sullivan are directly appointed by the president, while the other nominees would require confirmation by the Senate.

Biden emphasized the importance of Kerry’s newly...