The Western Ghats became a World Heritage Site in 2012. In the Anamalai sub-cluster in Tamil Nadu, beside Karian Shola, two other national parks are included, Grass Hills National Park and Mukurthi National Park. Additionally, three other protected areas are included, Kalakkad Mundanthurai Tiger Reserve, Grizzled Squirrel Wildlife Sanctuary and Tirunelveli (North) Forest Division. All these areas were previously protected under India's Wildlife Protection Act and the Forest (Conservation) Act, 1980, and people living in the Western Ghats were told that they should not expect any change as a result of being UNESCO listed; activities that were lawful before the area became a World Heritage Site would still be lawful afterwards. The World Heritage Committee said that the site's high montane forest ecosystems influence the Indian monsoon weather pattern. Moderating the tropical climate of the region, it presents one of the best examples of the monsoon system in the planet. It added that the Western Ghats were also home to at least 325 globally threatened flora, fauna, bird, amphibian, reptile, and fish species.