Thematic Area

This technical brief is a joint collaboration with the Nairobi work programme expert group on biodiversity and climate change adaptation and has been published as a supplement to the NAP technical guidelines. It targets country-level Convention on Biological Diversity and United Nations Framework Convention on Climate Change focal points and technical staff of ministries who are engaged in the planning and implementation of NAPs and NBSAPs.

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Ocean threats: acidification, deoxygenation, warming, heatwaves. Do we have anything useful to bend, change, or reverse the results? This brochure, conceived to advocate and educate at the UNFCCC COP27 meetings, summarises these threats and how various solutions (explained within) can actually help protect the ocean as Nature-based Solutions, if correctly constructed, and the existing and emerging financial mechanisms and institutions that can build and fortify these solutions. 

Healthy mangrove ecosystems are critical for global climate action – playing a key role in carbon storage and in building resilience to a rapidly warming world. Mangroves stabilize coastlines, reduce erosion, foster biodiversity growth and protect coastal communities by building their adaptive capacity and making them more resilient to the impacts of climate change, such as sea-level rise, storms and coastal erosion, Mangroves prevent more than US$65 billion in property damages and reduce flood risk to some 15 million people every year.

The vulnerability of marine biodiversity to accelerated rates of climatic change is poorly understood. By developing a new method for identifying extreme oceanic warming events during Earth's most recent deglaciation, and comparing these to 21st century projections, we show that future rates of ocean warming will disproportionately affect the most speciose marine communities, potentially threatening biodiversity in more than 70% of current-day global hotspots of marine species richness.

Marine protected areas (MPAs) are recognized as highly effective tools for marine conservation. They may also play an important role in mitigating climate change. A variety of climate change solutions are rooted in the ocean, centered primarily around “blue carbon” and the capacity of marine life to sequester carbon dioxide (CO2) with some potential to reduce emissions. However, the global potential of these solutions remains misunderstood and untapped.

The twin crises of climate change and biodiversity loss have brought into stark relief the need for greater collaboration and action at the international level to conserve, manage, and restore coral reefs.

 'Gwala Rising in the Bwanabwana Islands' depicts the revitalization of traditional conservation practices in the islands of Papua New Guinea. The community of Anagusa Island is combating the effects of climate change and protecting the coral reefs they rely on using gwala: the traditional practice of setting aside a reef or forest area to allow the ecosystem to recover. Gwala is helping the community of Anagusa Island prosper - empowering men and women with improved access to food and livelihoods.

Marine protected areas (MPAs) provide place-based management of marine ecosystems through various degrees and types of protective actions. Habitats such as coral reefs are especially susceptible to degradation resulting from climate change, as evidenced by mass bleaching events over the past two decades. Marine ecosystems are being altered by direct effects of climate change including ocean warming, ocean acidification, rising sea level, changing circulation patterns, increasing severity of storms, and changing freshwater influxes.

The UN Environment Programme (UNEP) works to identify and draw attention to emerging issues of environmental concern. The UNEP Frontiers’ report continues to advance this work, signaling environmental issues and solutions for effective and timely responses. Some issues may be local, relatively small-scale issues today, but may have the potential to become an issue of regional or global concern if not addressed early. This year’s edition, Noise, Blazes and Mismatches, looks at three concerns: urban soundscapes, wildfires and phenological shifts.

The following handbook provides practical guidance on the effective use of protected areas as tools to reduce the likelihood and impacts of disasters. The main text is supplemented by case studies drawing on the experience of the Ministry of Environment in Japan, the International Union for Conservation of Nature (IUCN) and partners. It is aimed in particular at Disaster Risk Reduction (DRR) specialists - so that they understand and can integrate protected areas into DRR strategies.