Since the signing of the Paris Climate Agreement in 2015 many countries and big companies have ramped up their commitments to lower their emissions, while the U.S. under former President Donald Trump rejected the global effort. But no more: On Thursday — Earth Day —President Joe Bien convenes a virtual summit with dozens of world leaders, putting the U.S. back in the climate spotlight. Today, we preview the summit with POLITICO’s Zack Colman. Zack Colman is an energy reporter for POLITICO. Anthony Adragna is an energy reporter for POLITICO and host of POLITICO Energy. Carlos Prieto is a Politico podcast producer. Jenny Ament is the senior producer of POLITICO audio. Irene Noguchi is the executive producer of POLITICO audio.