S2 E8: Part 1 – EWN in the Pacific Region

Air Date: July 28, 2021

About This Episode

Climate change is affecting the ecosystems that support life and everything we depend on. The United Nations declared 2021 to 2030 the ‘Decade of Ecosystem Restoration’, and there is a global effort to restore ecosystems and the many benefits they provide, from enhancing food security and safe water to biodiversity. In this episode, we’re talking about the Pacific Region and how Engineering With Nature can learn from and add value to innovative ecosystem restoration, conservation, disaster management efforts, and infrastructure development. Our guests are Todd Bridges, Senior Research Scientist for Environmental Science with the U.S. Army Corps of Engineers and National Lead for EWN; Anita van Breda, Senior Director, Environment and Disaster Management, World Wildlife Fund; and William Glamore, Associate Professor and Principal Research Fellow at the Water Research Laboratory, UNSW Sydney, Australia.

Tropical Cyclones Olwyn, Nathan, Pam and Tropical Depression 3, March 11, 2015. Credit: NOAA, Public domain, via Wikimedia Commons

EWN can learn many lessons from the Pacific region in terms of its size, scale, and its diversity in nature and cultures. In the Pacific alone, there are about 25,000 islands. The Pacific Ocean covers 32% of the total surface area of the earth. The 11 Pacific Island countries that are members of the World Bank have a combined population of 2.3 million spread over 15% of the Earth’s surface. Pacific Island nations are facing critical challenges from climate change and sea level rise.

The Pacific and Indian Oceans together cover almost half the surface area of the earth. If you add Asia, which is the largest continent, most of the world is in the Pacific and Asian region. Australia itself is a huge island continent. As Will points out, the coastline of one Australian state is equivalent to the entire U.S. East and West Coasts combined! It’s a land of extremes with searing heat, long droughts broken up by major floods, and waves of cold Antarctic blasts. Climate change is further compounding these effects, and the impacts are being felt through massive coral bleaching of the Great Barrier Reef, disastrous wildfires along the East Coast, and other large-scale climate effects.

As Anita notes, “The Pacific people have a strong attachment to land, not just as an economic commodity, but as a strong tie to their history and culture, their sense of who they are as a people. This presents a unique opportunity to use natural and nature-based features and the services they provide for local communities.” She adds, “Nature is such a fundamental part of who we are as people. Even at the smallest scale of the individual household level, it is a powerful thing. We should include that when we think about tackling big, systemic problems at landscape-level scale.”

As Todd describes it, “There’s tremendous diversity in context physically, but also culturally, that dwarfs the landscape and cultural diversity we have in North America or even in Europe. So how do we, consistent with Engineering With Nature, follow Mother Nature’s lead in composing solutions for these challenges rather than trying to impose and control Mother Nature with completely artificial solutions?”

Will notes that when Europeans settled Australasia and the Pacific, they applied a Eurocentric, one-size-fits-all view of the world. “Today I sit at the same desk as people who, 50 or 60 years ago, built the traditional dams, dykes, levees and canals. Now I’m trying to de-engineer those structures and make them more effectively engineered with nature.” He describes his early work as a PhD student faced with the challenge of acidic floodplains and how nature-based solutions were needed to solve the problem at scale. While this initial research helped solve the acid problem, he also quickly realized that it provided co-benefits of improved water quality, reduced flood risk, increased aquaculture, and blue carbon habitat. In this podcast, Will describes how his EcoEng team has grown this research from small test sites to huge scale creation projects and how he is now trying to create a wetland-based economy for the future.

Big Swamp Restoration Site (Australia). Credit: MidCoast Council

Anita’s work at the World Wildlife Fund often has her thinking about how she and her team of environmental scientists can work more successfully with engineers like Will, as well as with humanitarian organizations like the Red Cross and others. Her key objectives “are to better understand each other’s perspectives, timing, and goals, and to train the next generation of practitioners to be able to better work together by breaking down our institutional silos so they can address a really challenging future together”.

As we wrap up Part 1, Todd notes that the value of taking what has been learned in the Pacific Region and applying it more broadly must focus on addressing not only the challenges faced by the islands, but also the connection between people and nature and how important nature is to people and people are to nature. “If we respect Mother Nature, I think she will respect us back, and we will find solutions to many of these very tangled and difficult challenges that we confront around the world.”

In Part 2: Nature-Based Solutions for Infrastructure, the Global Sand Crisis, and Wealth Distribution, our discussion continues as Todd, Anita and Will talk about how the application of natural and nature-based approaches to infrastructure challenges is increasingly becoming common practice in the Pacific. We talk about how PIANC – the World Association for Waterborne Infrastructure – is advancing the application of natural and nature-based features (NNBF) in their infrastructure work. And we discuss the challenges Todd, Anita and Will are focusing on over the next few months, including climate change, the global sand crisis, wealth distribution, and further integration of NNFB into landscape-scale projects. Looking ahead, the Natural and Nature-Based Features for Flood Risk Management Guide will be released in September, providing an inspiring collection of examples from around the world demonstrating how nature can be used to address flood risk management. Join us for a dynamic discussion. Part 2 airs August 11, 2021.

Episode Guests

Professor of Practice, Resilient and Sustainable Systems, University of Georgia

Associate Professor and Principal Research Fellow UNSW Sydney’s Water Research Laboratory Chair of PIANC Australia and New Zealand

Senior Director Environment and Disaster Management World Wildlife Fund


Engineering With Nature; EWN; World Wildlife Fund; UNSW Sydney; PIANC; natural and nature-based features; NNBF; nature-based solutions; natural infrastructure; ecosystem restoration; ecological engineering; ecosystem services; wetlands creation, restoration and protection; climate change; sea level rise; extreme weather events; collaboration; coastal resilience; community resilience; flood risk management; environment and disaster management.

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