Climate News from Florida and California

Warning to readers: This is not my usual single-focus essay. It is a collage of news from two coastal states with an assortment of serious natural hazards challenges—Florida and California. In recent years, their politics has tended to diverge widely, but perhaps we are seeing a welcome convergence to some degree around climate issues. It is about time: Both face severe and unrelenting challenges, and there is little time to waste in identifying and implementing effective solutions.

Let’s start with Florida.

For starters, they are getting significant help from The Nature Conservancy (TNC), an organization that has long performed great work in preserving open space and researching the values of green infrastructure. For years, I have heard about the merits of coastal mangroves in mitigating hazards such as storm surge and coastal erosion. Recently, TNC employed an insurance industry catastrophe model to quantity the economic benefits of mangrove forests for reducing coastal storm damages in Collier County, and from Hurricane Irma, which struck parts of Florida in 2017. For those unfamiliar with the area, Collier County is in southwest Florida running from Naples on the Gulf of Mexico coast east into the Big Cypress Nature Preserve, which lies just north of Everglades National Park.

To quote the TNC website, “Many areas in the county received over $1 million in benefits every year in flood damage reduction benefits due to the mangroves in front of them.” Moreover, “Mangroves averted $1.5 billion in storm damages, amounting to a 25% savings in counties that have mangroves. They also protected more than 626,000 people across Florida.” You can access the full report, Valuing the Flood Risk Reduction Benefits of Florida’s Mangroves, here.

While TNC could be expected to take climate change and natural hazards seriously, Florida Republican officials are another matter. It is thus heartwarming to learn in a new Associated Press article that first-term Gov. Ron DeSantis has helped turn the page, along with some Republican lawmakers, on the climate denial that prevailed under his predecessor and now current U.S. Senator, Rick Scott. It also appears that Sen. Marco Rubio has joined a bipartisan Senate Climate Solutions Caucus launched in October. While one should not expect the sort of wholehearted embrace of climate issues that one sees among progressive Democrats, that is not necessary for one to appreciate the value of a return to a bipartisan approach to an issue where Republican support (and connection to reality) has in recent years been woefully lacking, especially under President Trump. Shifting public perceptions have driven political change in both California and Florida, and it is about time. Southern Florida has been awash in nuisance flooding driven by sea level rise, and pollution has threatened the environmental viability of the Everglades. If Republicans are finding a need to appeal to voters through climate action, that is, on balance, a far better thing for the political system than a hyper-partisan battle of acceptance of reality versus denial. It is also not surprising that two highly vulnerable states with major natural hazard threats would be in the forefront.

Of course, California under former Gov. Jerry Brown went all in on confronting climate change, in part because of the motivating impact of increasingly frequent and violent wildfires and lengthening wildfire seasons. If anything, current Gov. Gavin Newsom may be picking up the pace, but it is worth nothing that even former Republican Gov. Arnold Schwarzenegger has long acknowledged climate change and advocated effective state and federal action in response. But let me keep this post short and to the point. I recently taped some introductory material for new additions to the American Planning Association’s Resilience Roundtable podcast series, for which I will soon be moderating several new installments to be released in the coming year. But two new podcasts involve interviews by Prof. William Siembieda of California Polytechnic State University in San Luis Obispo, with planners from Butte County. The first is already available, in which he discusses the impact and recovery from the Camp Fire, which destroyed much of the city of Paradise, with senior planner Dan Breedon. The second interview will appear on the Resilience Roundtable page soon.

Jim Schwab

Natural Solutions for Natural Hazards

Boulder Creek, Boulder, Colorado

Boulder Creek, Boulder, Colorado

It has taken a long while in our modern society for the notion to take hold that some of the best solutions to reduce the impact of natural hazards can be found in nature itself. Perhaps it is the high cost of continuing to use highly engineered solutions to protect development that has often been sited unwisely in the first place that has finally gotten our attention. Particularly after Hurricane Sandy, however, the notion of using green infrastructure as part of the hazard mitigation strategy for post-disaster recovery began to gain traction; green infrastructure was highlighted in the federal Hurricane Sandy Rebuilding Strategy. These approaches are also known as natural or nature-based designs. They involve understanding the role natural systems play in reducing damages and in using that knowledge to deploy such solutions as part of an intelligent game plan for improving community resilience.

But where should community planners and local officials get reliable information on the best and most proven strategies for implementing green infrastructure solutions?

About a year and a half ago, researchers from The Nature Conservancy (TNC) approached me about involving the American Planning Association (APA) Hazards Planning Center in a project they were undertaking with support from the Kresge Foundation to prepare such information in the form of a green infrastructure siting guide. In the end, they also involved the Association of State Floodplain Managers (ASFPM), the National Association of Counties (NACo), the American Society of Civil Engineers, and the Boston-based design firm Sasaki Associates to assist with this effort. Over the past year or more, we have all met regularly to discuss what needed to be done and our progress in making it happen. We produced case studies, strategy briefs, and other material to populate the project’s web-based resources.

Bioswale in a subdivision development in Boulder County, Colorado.

Bioswale in a subdivision development in Boulder County, Colorado.

Last month, after all that teamwork, TNC unveiled its new website for the project, called Naturally Resilient Communities. For those interested in knowing how trees, living shorelines, dunes, coastal marshes, and oyster reefs, among other types of natural infrastructure, can help mitigate natural hazards like coastal storms and urban flooding, the website provides a serious and interactive introduction to the subject matter, backed up by numerous resources.

What is especially valuable about the website design is that it allows users multiple avenues into the specific types of information they need. Not all natural infrastructure solutions are born equal. Some are more appropriate in certain settings than others. Some work best in inland river valleys, some along coastlines, and others in mountains or high plains. Some coastal solutions work well in the rocky coastlines of California or Oregon, while others work better along Atlantic or Gulf Coast shorelines. Applying such solutions is largely a matter of learning what works best in a specific natural environment in the face of specific hazards—riverine flooding, hurricanes, thunderstorms, or other threats that communities face. It is critical to adapt the solution to the problem.

Accordingly, the website, largely the work of Sasaki Associates with vetting from the other project partners, allows users to approach the information by deciding which strategies they wish to investigate or which part of the United States is relevant. They can also look at considerations such as cost, the geographic scale of the solution (neighborhood, municipal, regional), and the type of community in question. These are precisely the frames of reference familiar to most urban planners and civil engineers who are most likely to be involved in implementing natural infrastructure projects. The emphasis throughout is on the practical, not the ideal or the ideological. A particular approach either works or does not work, but it does so in very specific settings, such as a neighborhood in a city along one of the Great Lakes or in the Southwestern desert. Context is the central question.

This memorial to Gilbert White, the pioneer of modern floodplain management, marks the high point of flooding along Boulder Creek.

This memorial to Gilbert White, the pioneer of modern floodplain management, marks the high point of flooding along Boulder Creek.

Establishing context is why the project put considerable emphasis on case studies, which cover a variety of communities around the nation. Specify, for example, Rocky Mountain West as a region and riverine flooding as a problem, and the site gives you a case study from Boulder, Colorado, that examines the alternatives considered and solutions adopted for flooding along Boulder Creek and discusses the involvement of the city and the Denver-based Urban Drainage and Flood Control District to implement a stream restoration master plan. One can also find case studies from Florida, Ohio, and numerous other locations. One can also, however, explore sections of the website devoted to additional resources and funding

sources to support green infrastructure projects. These allow the user to connect to other websites and some PDFs for additional information.

Go explore. I admit to taking pride in our involvement in this effort. It is, I think, a welcome resource and great learning tool for planners, engineers, local officials, and the interested public.

 

Jim Schwab