(FILES) Picture shows the cracked riverbed due to drought in the Guadalteba reservoir, in Los Campillos, on August 9, 2017. 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 JORGE GUERRERO / AFP via Getty Images)