A vendor waits for customers at a flea market on the Pont Louis-Philippe in central Paris, on May 7, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

People crowd between the stalls of a flea market on the Pont Louis-Philippe in central Paris, on May 7, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

A vendor waits for customers at a flea market on the Pont Louis-Philippe in central Paris, on May 7, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

TOPSHOT - Buildings in the central business district are reflected on a balcony in Beijing on May 7, 2026. (Photo by GREG BAKER / AFP via Getty Images)

TOPSHOT - Buildings including China Zun, the tallest building in Beijing, are seen in the central business district in Beijing at dusk on May 7, 2026. (Photo by GREG BAKER / AFP via Getty Images)

Buildings including China Zun, the tallest building in Beijing, are seen in the central business district during sunset in Beijing on May 7, 2026. (Photo by GREG BAKER / AFP via Getty Images)

An employee drills a used nitrous oxide canister during the recycling process at DI Services' recycling factory in Saint-Pathus, north-east of Paris on May 7, 2026. In this noisy warehouse in Seine-et-Marne, canisters of nitrous oxide pile up by the thousands as beyond the public health scourge by the diversion of its use as "laughing gas" in party and recreational settings, it poses a colossal environmental challenge to gather and recycle these bottles which are abandoned all over France. (Photo by Thomas SAMSON / AFP via Getty Images)

An employee carries a batch of used nitrous oxide canisters at DI Services' recycling factory in Saint-Pathus, north-east of Paris on May 7, 2026. In this noisy warehouse in Seine-et-Marne, canisters of nitrous oxide pile up by the thousands as beyond the public health scourge by the diversion of its use as "laughing gas" in party and recreational settings, it poses a colossal environmental challenge to gather and recycle these bottles which are abandoned all over France. (Photo by Thomas SAMSON / AFP via Getty Images)