The development of earth’s solid inner core had everything to do with the rejuvenation of the swirling liquid iron in the planet’s outer core, which generates its protective magnetic field, something that Mars doesn’t have.
Even if China does set up an effective and efficient centralized buying system for iron ore, it's unlikely to shift market dynamics much, writes Clyde Russell.
Building new roads to reach mines would allow illegal loggers, land grabbers and ranchers easier access to relatively untouched parts of the forest, study says.