Red List of IUCN is known as

Correct Answer: D. Barometer of Life

Explanation: IUCN Red List: The International Union for Conservation of Nature (IUCN) maintains the Red List of Threatened Species, which was first established in 1964. The IUCN Red List “provides information about range, population size, habitat and ecology, use and/or trade, threats, and conservation actions that can help inform necessary conservation decisions.” Purpose: To identify species at high risk of extinction. To help governments, NGOs, and researchers track biodiversity trends and prioritize conservation efforts. To serve as an indicator for global biodiversity targets, including the UN Sustainable Development Goals (SDG 15: Life on Land). Categories in the Red List include: Extinct (EX) Extinct in the Wild (EW) Critically Endangered (CR) Endangered (EN) Vulnerable (VU) Near Threatened (NT) Least Concern (LC) Data Deficient (DD) Not Evaluated (NE) The IUCN officially describes its Red List as “the Barometer of Life” because it measures the overall health of the world’s biodiversity — just as a barometer measures atmospheric pressure. It reflects how life on Earth is responding to various pressures such as habitat loss, climate change, pollution, and exploitation.