In the Mexican desert near the US border, security forces are on alert after a man was found dead from heat stroke on the journey to what he hoped would be a better life in North America.
Environment
Jun 22, 2024
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23
California's earthquake early-warning system is getting a seismic upgrade, one that will allow residents to receive more timely alerts about shaking from an incoming megaquake.
Earth Sciences
Jun 6, 2024
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114
Borders define geographic boundaries of political entities or legal jurisdictions, such as governments, sovereign states, federated states and other subnational entities. Some borders—such as a state's internal administrative borders, or inter-state borders within the Schengen Area—are open and completely unguarded. Other borders are partially or fully controlled, and may be crossed legally only at designated border checkpoints. Some, mostly contentious, borders may even foster the setting up of buffer zones.
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