Mexico's

The past several days have been devastating ones for Mexico’s state-run Pemex, which reported three refinery fires last week that have left two dead and more injured, followed by quarterly reporting that downs a tripling of losses against an impossible level of debt and a stark failure to revive output. ...

The nation announced plans to ban experiments following a startup’s attempt to release reflective particles in the stratosphere, raising difficult questions among scientists exploring methods for cooling the planet.An aerial view of Baja California.Getty Images Luke Iseman, previously a director of hardware at Y Combinator and the cofounder of a geoengineering startup, says he added