Rising sea planning also rises

South Florida ramps up steps to counter greater flood risk

South Florida is taking more steps to protect against climate change and the rising seas that already are spilling over into neighborhoods.

This month, Broward County ordered that new flood maps be drawn using predictions of higher waters, the latest in a series of steps taken from Palm Beach County to the Keys.

FortLauderdale raised the required height of seawalls and the elevation of home sites; Delray Beach added valves to keep saltwater out of the city drainage system; Broward County put a financing program in place for homeowners whowant to tap solar energy.

That doesn’ t mean Florida is all ready and set for the ill effects of rising global temperatures. A nationally recognized advocacy group that rated states on preparedness gave Florida aC- .

The causes of climate change and debate about how far government should go to prepare for it continue to be a political flash point nationally. But at Florida’s southern end, densely populated and with billions in real estate at stake, preparing for it has become commonplace.

“It’s mainstream planning these days,” Palm Beach County Commissioner Steve Abrams said. “It [also] took a while for people to understand that cigarettes are bad for you or to put on your seat belt.”

The National Oceanic and Atmospheric Administration says sea level has been rising over the past century, and the rate is increasing.

According to the Southeast Florida Regional Compact Climate Action Plan, updated in October 2015, sea level will rise 6 to 10 inches by 2030, 14 to 26 inches by 2060 and 31 to 61 inches by 2100.

Climate change is expected to lead to increased flooding along the coast and inland, intrusion of salt water into the underground freshwater supply, decrease in property values and an increase in insurance costs, the multicounty compact says.

The dire predictions moved beyond the theoretical when tidewaters in recent years began lapping up into the streets of coastal communities like Key West, Key Largo, Miami Beach, Fort Lauderdale, Hollywood, Boca Raton and Delray Beach. Seawater in2012’s Hurricane Sandy destroyed a segment of State Road A1A in Fort Lauderdale.

Just five years ago, critics accused the Broward County Commission of falling into a United Nations “Agenda 21” plot to take control over America, when whatwas then referred to as “global warming” came up. Since then, climate change planning has become as ordinary in South Florida government as hardening for hurricanes.

Just in 2016, the Broward Commission took climatechange related votes 23 times.

“We have to do all we can to effect a slowing of climate change, of sea level rise, whatever we can do,” said Broward Commissioner Nan Rich, a former state senator. “And I don’t think that a good percentage of it is about money. It’s about how we live, what kind of development we have.”

South Florida has been nationally recognized for leadership on the issue.

Eight years ago, in 2009, Broward, Palm Beach, Miamiand Monroe counties, a region of 6 million people representing 30 percent of Florida’s population, joined to study and react to the planetary weather changes. In 2015, President Barack Obama visited the Florida Everglades to highlight the threat of climate change, and praised the four-county compact as “a model not just for the country, but for theworld.”

The work that’s been done mostly is marked in policies and maps, hidden in the labyrinths of bureaucracy, largely unnoticed by the public. But the work will guide the spending of public funds, and will change how homes, buildings, roads and sidewalks are built, as the region redevelops.

For example, when a oneor two-story home is torn down and replaced in Fort Lauderdale, the new home must be built on higher ground. City spokesman Chaz Adams said the new requirements were set in place in 2014, a foot higher than elevations in new

FEMA maps.

“The adoption of a higher elevation requirement is one of several proactive steps the city has taken to adapt to sea level rise and climate change,” Adams said.

The city last summer also increased the required height of sea walls, a rule that applies when a new one is built or an existing one is significantly repaired.

Palm Beach County added hybrid vehicles to the public fleet, adjusted traffic signal timing to reduce emissions at traffic signals and created “living shorelines” where plants provide protection instead of concrete.

It recently completed and opened a waste-to-energy plant, where household refuse is transformed into electricity.

Monroe County in 2012 hired its first “sustainability coordinator.” Miami-Dade created the position of “chief resilience officer” in October 2015. Palm Beach County hired a “climate change and sustainability coordinator” last March. Broward named a “chief climate resilience officer” last September.

Bro ward incorporated climate change planning into its “Broward Next” vision for future development, the Comprehensive Land Use Plan that’s making itsway to approval. The county also created a “Plan it Green” program, where event organizers or tourists can calculate their carbon footprint and offset it by paying for the local planting of trees.

Broward County inventoried greenhouse gas emissions, from airplanes, electricity, transportation and solid waste, among other sources, and set a target to reduce them 80 percent below the 2007 level by 2050. Monroe County plans to reduce emissions by 15 percent.

Abrams said a study in Palm Beach County found emissions dropped there, also. He said getting more people to ride Tri-Rail trains has helped by getting the equivalent of one lane of Interstate 95 traffic off the roads each day.

All four counties have agreed to ward off flooding by planning for higher sea levels, working to adopt new forecast map ssuch as those Broward voted on this month. The new sea level projections would come into play during construction, leading to new requirements for handling storm water and drainage.

States at Risk, a climate change research group that in 2015 produced the first national assessment of readiness, acknowledged some work has been done, but rated Florida aC-in preparing for extreme heat, drought, wildfires, inland flooding and coastal flooding.

“Florida has a lot of work to do,” the report card summarized.

The preparations come with a cost. Broward, for example, has spent about $2 million on modeling and planning so far, Chief Climate Resilience Officer Jennifer Jurado estimated, with the county paying 60 percent and cities and the federal government paying the rest.

Jurado said the money spent is an investment “in our community, economy and quality of life.”

“We can’t afford the alternative,” Jurado said.

bwallman@sunsentinel.com, 954-356-4541or Twitter @BrittanyWallman and @BrowardPolitics.