redOrbit: Bill Erasmus, chief of the Dene nation located in northern Canada, issued a grave warning targeting the climate crisis: The once plentiful herds of caribou are declining, rivers are smaller and the ice is too thin to hunt upon safely. Erasmus brought his worries to the sidelines of a U.N. climate conference, looking to guarantee that North America’s indigenous peoples are not forgotten in the global warming negotiations. Erasmus, the elected organizer of 30,000 native Americans …