A puzzling concentration of the greenhouse gas methane over the Southwestern United States appears to come mostly from leaks in natural gas production, scientists said Monday.
Consumers think smartphone makers are releasing too many new models each year, a survey showed Tuesday.
Colorful gondolas lazily ferry tourists around the floating gardens of Mexico City's Xochimilco district, but not all is green in this idyllic vestige of the Aztec empire increasingly choked by urbanization.
Mexico launched the Comprehensive Plan for the Southern Border (CPSB) in 2014 in an attempt to manage increased migration flows from Central America. But two years after the plan's implementation, it has yet to accomplish ...