(FILES) A pedestrian walks with an umbrella to shield from the sun amid a heatwave in Tokyo's Shinjuku district on June 28, 2022. Scientists warn of record heat, threats to climate monitoring. Planetary heating is intensifying and key climate indicators are deteriorating, top scientists said on June 11, 2026, warning that funding decisions affecting Earth observation systems in the United States and other countries threaten efforts to track global warming. (Photo by Philip FONG / AFP via Getty Images)