Living Blue Planet Report

The Living Blue Planet Report 2015 documents a 49% decline in global marine vertebrate populations between 1970 and 2012. It highlights critical losses in key habitats, including over half of reef-building corals in tropical reefs over 30 years and nearly 20% of mangrove cover between 1980 and 2005. The report identifies overfishing, climate change, pollution, and extractive industries as primary drivers of this degradation. It emphasizes the socio-economic risks, noting that nearly 3 billion people rely on fish as a major protein source and that the ocean generates at least US$2.5 trillion in annual economic benefits. The document advocates for the 'One Planet Perspective' framework, which includes expanding Marine Protected Areas (MPAs) to 30% to potentially generate up to US$920 billion by 2050.

• The global marine Living Planet Index (LPI) indicates a 49% decline in vertebrate populations from 1970 to 2012, based on 5,829 populations of 1,234 species.
• Fish species utilized by humans for food and livelihoods have seen a 50% reduction in population numbers globally between 1970 and 2010, with the Scrombidae family (tunas, mackerels, and bonitos) declining by 74% in the same period.
• Critical marine habitats are in severe decline: tropical reefs lost more than half of their reef-building corals in the last 30 years, and approximately 29% of global seagrass area (over 51,000 square kilometres) has been lost since 1879.
• Global mangrove cover decreased by nearly 20% between 1980 and 2005, losing approximately 3.6 million hectares primarily due to conversion for aquaculture, agriculture, infrastructure, and tourism.
• Overfishing is a primary threat to marine life, with 29% of global fish stocks classified as overfished and 61% as fully exploited. This is exacerbated by fishing subsidies estimated at US$14-35 billion annually.
• Climate change is causing ocean warming and acidification; if current temperature rise continues, coral reefs may disappear by 2050. In the Arctic, summer sea ice is projected to be nearly ice-free within the next 30 to 40 years.
• Land-based sources contribute approximately 80% of all marine pollution. This includes over 5 trillion plastic pieces weighing more than 250,000 tonnes currently afloat at sea.
• The ocean provides immense economic value, generating at least US$2.5 trillion in annual benefits, with total underpinning assets valued at at least US$24 trillion.
• Expanding Marine Protected Area (MPA) coverage to 30% of marine and coastal areas could generate between US$490 billion and US$920 billion by 2050 and create 150,000-180,000 full-time management jobs.

APA

WWF International (2015). Living Blue Planet Report. https://www.worldwildlife.org/documents/654/5dqysd8gh6_Living_Blue_Planet_Report_2015_Final_LR.pdf

Chicago

WWF International. Living Blue Planet Report. 2015. https://www.worldwildlife.org/documents/654/5dqysd8gh6_Living_Blue_Planet_Report_2015_Final_LR.pdf.

Wikipedia

{{cite report |author=WWF International |title=Living Blue Planet Report |date=2015 |url=https://www.worldwildlife.org/documents/654/5dqysd8gh6_Living_Blue_Planet_Report_2015_Final_LR.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{wwfinternational2015living, author = {{WWF International}}, title = {{Living Blue Planet Report}}, institution = {WWF International}, year = {2015}, url = {https://www.worldwildlife.org/documents/654/5dqysd8gh6_Living_Blue_Planet_Report_2015_Final_LR.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }