News Pearl Jam, Greta Thunberg paint grim picture of environment’s future in ‘Retrograde’ video May 14, 2020 USA TODAY Comments Off on Pearl Jam, Greta Thunberg paint grim picture of environment’s future in ‘Retrograde’ video The 'Retrograde' video, featuring Greta Thunberg, paints a grim picture of what's ahead for the environment if drastic changes aren't made.