Brandon Sun: Michael Ignatieff says tackling climate change should be considered a crucial element of Canada’s national security strategy. The Liberal leader says there is “no question that climate change has huge security consequences.” “You’ve got to put everything together – climate change, defence, diplomacy and development,” he said prior to an event in Montreal Saturday evening. He said the Harper government has “no plan” for climate change and continues to treat the issue in isolation. Ignatieff…