California sued the Trump administration after it sent the state's vehicle emissions regulations to Congress seeking their possible repeal.

Hungary's Prime Minister magyar said he will introduce broad economic, political and legal measures to eliminate corruption in Hungary.

Researchers at the Institute of Process Engineering, Chinese Academy of Sciences, with Shenzhen University developed a polymer "latch" mechanism to assemble nanoparticles into a three-dimensional photothermal evaporator that sharply raises solar-driven seawater evaporation. The structure achieves 90.2% solar absorption; nanoscale confinement alters the water hydrogen-bond network and cuts the energy required for the same evaporation volume by 45.7%. A single evaporator recorded an evaporation rate of 38.1 kg/hr per m2, 8.5x the team’s prior 2D films. In a 30-day accelerated seawater aging test there was no nanoparticle shedding; the material produced no photo-induced reactive free radicals and addressed organic-substrate degradation. Results published in Advanced Materials. The team is working to improve condensation efficiency and reduce system costs to enable scale-up for coastal water-scarce regions, islands and remote agricultural irrigation.