(FILES) Aerial view of people walking along an almost dry arm of the Parana River, which water level reached a historic low, near Rosario, Santa Fe, Argentina, on August 22, 2021. 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 JUAN MABROMATA / AFP via Getty Images)