Nearly all coral reefs risk collapse in 50 years: IUCN

{"heading_1":"Climate Change and Coral Reefs","subheading_1":"IUCN's Global Assessment","content_1":"The International Union for Conservation of Nature (IUCN) has released a global assessment warning that nearly all shallow-water coral reefs around the world are at an 'extremely high risk' of disappearing by 2075 due to climate change. This assessment is based on the 'middle-of-the-road' scenario from the U.N. panel of climate experts, projecting global temperatures to rise 2.7 degrees Celsius above pre-industrial levels by 2100.","subheading_2":"El Nino and Coral Health","content_2":"The emergence of a super El Nino, a natural warming phenomenon, also poses a risk to coral health. IUCN's scientific lead, Mishal Gudka, emphasized that heat stress from climate change is the single most consistent threat driving coral reef decline worldwide.","subheading_3":"Overfishing and Other Threats","content_3":"Overfishing, particularly the overexploitation of parrotfish and other groupers, threatens 63% of coral reef ecosystems. Other threats include coastal development, pollution, tourism, and more frequent storms. The IUCN's analysis covered 127 tropical and subtropical coral systems covering 188,362 square kilometers.","subheading_4":"Coral Ecosystem Collapse","content_4":"A reef ecosystem collapses when hard corals largely disappear and are replaced by algae, rubble, and sponges. The IUCN's analysis found that 24% of coral reef ecosystems would be deemed critically endangered if only past changes were considered, rather than future climate projections.","subheading_5":"Conservation Efforts and Climate Action","content_5":"IUCN Director General Grethel Aguilar emphasized that while it is not too late to give coral reefs a chance to recover, ambitious emissions reductions, stronger protection, and restoration efforts are needed. Sustained investment in resilient coastal ecosystems and communities is also crucial."}