It's all so confusing: If the alleged devastation of climate change is so obvious, why does the UN chief claim it was an "invisible issue" before the UN started promoting it?

UN on more 'frontlines' than ever before: Ban - FOCUS Information Agency

Ban also hailed UN efforts to put climate change and nuclear disarmament at the forefront of the global agenda.
"When we began, climate change was an invisible issue. Today, we have placed it squarely on the global agenda," he said.