The World Health Organization puts the number of deaths from climate change at 250,000 by 2050. Droughts, wildfires, floods, and catastrophic rains only lead to one question: Has the politics of climate change finally reached the tipping point? CNA traverses around the world to investigate Australia's coal conundrum, Pakistan's Himalayan meltdown and Brazil's Amazonian battle. Along the way, we meet people and activists trying to find ways to tackle the biggest issue of the 21st century. A combination of bad policies and political apathy is speeding up climate change. Can it be reversed? EP1: AUSTRALIA'S COAL CONUNDRUM EP2: PAKISTAN'S HIMALAYAN MELTDOWN EP3: BRAZIL'S AMAZONIAN BATTLE