How Does Climate Change Affect Animals. Animals are affected by increases in pollution that affects the food they eat and the habitats they live in. Vulnerability very sensitive to temperature changes at all life stages—for example, the sex of baby turtles is determined by the temperature of the sand the eggs are laid in.
Increases in temperature could trigger the collapse of fragile ecosystems and huge waves of extinction. Greenhouse gases in the atmosphere stop all this heat from being lost in space, keeping the planet at an average temperature of 15 degrees celsius. Animal habitats are becoming less comfortable, sometimes even inhospitable.