Breakthrough capsules made from natural materials vanish with light or water, and that’s just scratching the surface.

The Insurgentes Collector wastewater system, a sewage pipe in Tijuana, collapsed on Thursday, dumping a daily flow of about ...

The costliest disasters were hailstorms, tornadoes and high winds … Chemicals used in plastics linked to higher death risks … Black, Hispanic children more likely to live in poverty … and more.