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20.4. ECOSYSTEMS AND BIO-DIVERSITY

Climate Change has the potential to cause immense biodiversity loss, affecting both individual species and their ecosystems that support economic growth and human well being.

The projected extinctions of flora and fauna in the future will be human driven i.e. due to adverse impact of human activities.

According to International World Wildlife Fund (WWF) species from the tropics to the poles are at risk.


Many species may be unable to move to new areas quickly enough to survive changes that rising temperatures will bring to their historic habitats.

WWF asserted that one-fifth of the world’s most vulnerable natural areas may be facing a “catastrophic” loss of species.

It have catastrophic impact on the marine ecosystems. They will be affected not only by an increase in sea temperature and changes in ocean circulation, but also by ocean acidification, as the concentration of dissolved carbon dioxide (carbonic acid) rises.

This is expected to negatively affect shell forming organisms, corals and their dependent ecosystems.


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Grizzled giant squirrel is distributed in the patches of riparian forest along the Kaveri River and in the hill forests in the Tamil Nadu and Kerala states of southern India. IUCN Status - near threatened