A look inside Lollapalooza, where the show goes on despite a COVID-19 surge. How the global chip shortage impacts everything from cars to cellphones. A new city board charged with caring for trees.

• Lolla Rocks Chicago as COVID-19 Cases Rise, Governor Reimposes Mask Mandate for State Facilities
• Global Shortage of Computer Chips Hits US Manufacturing
• How a Newly Created Advisory Board Could Help Restore Chicago’s Urban Canopy
• Ask Geoffrey: Cicero’s Klas Restaurant
• Ron Popeil, Inventor and King of TV Pitchmen, Dies at 86