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Effect of climate change on the small tortoiseshell butterfly

As the Earth's mean temperature increases, the habitats that organisms can occupy are changed. For the small tortoiseshell butterfly, it is estimated that by 2080 most of central Europe will not be habitable by the butterflies. However, they will gain suitable habitats in northern Europe.

Effect of water pollution in the Yangtze River

The Yangtze River in China is home to 350 fish species, a high crab biodiversity and over 160 amphibian species. It is also the sole habitat of many species including the Finless Porpoise and the Chinese River Dolphin.

Because of increasing levels of pollution in the river, the distribution of species in the river is changing as many are no longer able to live there. Sightings of the Chinese River Dolphin have become such a rarity that it is now believed to be extinct.