Water is key to life, but it's in short supply. The planet is getting warmer and soon there will be less water to go around. The animals fighting for freshwater are explored, including viscachas in Peru and hippos in Kenya.

The great plains and savannas are feeling the heat from climate change and out on the grasslands there will be less food and space for survival, which impacts the Iberian lynx in Spain and lions in Kenya.

Forest animals have an incredible home and their trees are nature's engines, filtering water, storing carbon and pumping out oxygen. But climate change is threatening their stability from the Amazon to Canada's Boreal forest.

Temperature is the key to life in a mountain environment, and climate change is forcing mountain animals to travel higher to escape the oppressive heat. Pikas in the Rocky Mountains and nursery frogs in Australia are featured.

Climate change has impacted the balance of life in the wetlands, and out in the marsh there's less water and food for survival, which affects magpie geese in Australia and the Key deer in Florida.

Oceans are getting warmer due to climate change, and rising sea temperatures are an invisible but deadly killer affecting corals of the Great Barrier Reef and tiger sharks along the coast of Australia.