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These American states are the least prepared for extreme weather

These American states are the least prepared for extreme weather
These American states are the least prepared for extreme weather


Is extreme weather still extreme when it seems like it’s happening every day? Whether it is oppressive heat, bitter cold, catastrophic floods or ferocious wildfires, we are all feeling the effects of an angry climate.

Beyond disrupting our lives, the economic impact of these events is deep and pervasive. It is no wonder that companies are now considering climate risks as they decide where to locate or expand their facilities.

“If you have to close for a certain number of days out of the year because of exposure to flood, or if part of your business uses outdoor recreation or outdoor workers, and you have to close because of heat, people are responding to this. And they’re picking places to locate based on lower exposure to these types of climate risks,” said Jeremy Porter, head of climate implications for the non-profit, non-partisan First Street Foundation, which quantifies climate risks for companies, individuals and governments.

Because sustainability is now a part of competitiveness, CNBC considers it in our annual America’s Top States for Business rankings. Under our 2023 methodology, it is part of our Infrastructure category.

To determine which states are the most sustainable — and which are the least — we use state-level data provided to CNBC by First Street on the percentage of properties at risk of major damage from extreme heat, wind, flooding and wildfires over the next 30 years.

We also consider the National Oceanic and Atmospheric Administration (NOAA)’s Climate Extremes Index, which looks at temperatures, precipitation, drought and hurricanes. And, because companies are looking for sustainable energy sources, we consider U.S. Department of Energy data on renewable power.

Some states are in good shape to handle whatever the climate throws at them, but these are the states most at risk.

10. (tie) New York

Snow blankets the city in this aerial drone photograph in Buffalo, New York, on December 25, 2022.

Joed Viera | Afp | Getty Images

Christmastime last year was anything but peaceful in the Empire State. Beginning December 23 and continuing for nearly a week, what the National Weather Service described as a “once-in-a-generation” event pummeled the state — and most of the Northeast — with massive snowfalls, blizzard conditions, and flooding. In New York alone, 43 people died. The state prides itself on abundant renewable power. It is a major reason Micron Technology said it chose Syracuse for a massive, $100 billion chip manufacturing plant. But extreme weather here is a concern.

2023 Infrastructure score: 222 out of 390 points (Top States grade: B-)

Climate Extremes Index (National Average: 19.68%): 24.6%

Properties at risk: 21.5%%

Renewable energy: 33.8%

10. (tie) Alabama

TUSCALOOSA, AL – APRIL 28: In the aftermath of a severe tornado, Kelly Giddens (R) helps University of Alabama law student Daniel Hinton remove belongings from his destroyed home in the Cedar Crest neighborhood on April 28, 2011 in Tuscaloosa, Alabama.

Jessica Mcgowan | Getty Images News | Getty Images

Tornado Alley, the swath of the nation’s midsection where most twisters occur, has been gradually shifting eastward, scientists agree. That is bad news for Alabama, which is increasingly in the crosshairs of severe storms. Where in the past, northeastern Texas and southern Oklahoma were most at risk, storms are becoming more prevalent in the Southeast, like a major outbreak in Alabama in March that left one person dead. So far in 2023, the National Weather Service reports 91 tornadoes in Alabama — second only to Illinois — in a state that already faces risks from Gulf Coast hurricanes.

2023 Infrastructure score: 228 out of 390 points (Top States grade: B)

Climate Extremes Index: 21.16%

Properties at risk: 45.2%

Renewable energy: 10.6%

9. Wisconsin

A young girl wades along a flooded street April 19, 2001 in Prairie du Chien, WI.

Tim Boyle | Hulton Archive | Getty Images

While the Badger State has largely escaped major weather disasters in recent years, Wisconsin faces growing risks of flooding, like the incident in April, triggered by heavy rain and snowmelt, that led Gov. Tony Evers to declare a state of emergency. Wisconsin is a big ethanol producer, but the state gets only a small percentage of its energy from renewable sources.

2023 Infrastructure score: 165 out of 390 points (Top States grade: D)

Climate Extremes Index: 8.7%

Properties at risk: 2.8%

Renewable energy: 12%

8. South Carolina

Rain from Hurricane Ian floods a street on September 30, 2022 in Charleston, South Carolina.

Scott Olson | Getty Images News | Getty Images

Hurricane Ian, which ravaged Florida and the Carolinas last year, is the third costliest storm on record. By the time it made its final landfall near Georgetown, South Carolina, on September 30, it did $113 billion in damage and killed 161 people, mostly in Florida. As a coastal state, South Carolina is vulnerable to Atlantic hurricanes, which are increasing in intensity as ocean waters warm.

2023 Infrastructure score: 240 out of 390 points (Top States grade: B+)

Climate Extremes Index: 21.16%

Properties at risk: 46.4%

Renewable energy: 8.8%

7. California

Houseboats sit in a narrow section of water in a depleted Lake Oroville in Oroville, California on September 5, 2021.

Josh Edelson | AFP | Getty Images

The Golden State prides itself on environmental consciousness. It gets much of its energy from renewables, and Gov. Gavin Newsom raised eyebrows — and warmed the hearts of environmentalists —when he ordered that all cars and trucks sold in the state be zero emission vehicles by 2035. Nonetheless, California is beset with climate risks. Its historic drought finally ended this year, but only after record rains drenched the state, causing massive floods and at least 22 deaths. Because the state lacks the infrastructure to capture much of the water for future droughts, trillions of gallons simply flowed out to sea. The rains also led to huge growth of vegetation, which is drying out and becoming a serious fire hazard.

2023 Infrastructure score: 205 out of 390 points (Top States grade: C+)

Climate Extremes Index: 41.04%

Properties at risk: 26.7%

Renewable energy: 74.1%

6. Pennsylvania

A rig drills for natural gas at a hydraulic fracturing site owned by EQT Corp. located atop the Marcellus shale rock formation in Washington Township, Pennsylvania, U.S., on Thursday, Oct. 31, 2013.

Bloomberg | Bloomberg | Getty Images

3. (tie) New Jersey

Flood damaged cars are seen at the Oakwood Plaza Apartments in the aftermath of flooding that was caused by the remnants of Tropical Storm Ida which brought drenching rain, flash floods and tornadoes to parts of the northeast in Elizabeth, New Jersey, September 2, 2021.

Brendan McDermid | Reuters

Nearly two years after the remnants of Hurricane Ida brought flooding and tornadoes to the Garden State, New Jersey is still dealing with the aftermath. Twenty-three people died in New Jersey alone, most due to flooding in the central part of the state. New Jersey’s coastal location makes it particularly vulnerable to intensifying Atlantic storms.

2023 Infrastructure score: 212 out of 390 points (Top States grade: C+)

Climate Extremes Index: 24.6%

Properties at risk: 49.3%

Renewable energy: 11.3%

3. (tie) Delaware

(L to R) Richard Bunting and Alex Hamilton inspect a house that a large tree fell on after a tornado spawned by Hurricane Irene touched down, on August 28, 2011 in Lewes, Delaware.

Mark Wilson | Getty Images

The First State shares most of the sustainability issues of its Mid-Atlantic neighbors. As a coastal state, Delaware is frequently in the path of Atlantic storms and Nor’easters — and as the nation’s second smallest state after Rhode Island, there are not many places to flee to. Despite President Joe Biden’s push for renewable energy, his home state does not set a very good example.

2023 Infrastructure score: 216 out of 390 points (Top States grade: B-)

Climate Extremes Index: 24.6%

Properties at risk: 53%

Renewable energy: 8.2%

3. (tie) Connecticut

In this photo taken using a drone, the blades of a 100-kilowatt, wind-powered turbine spin in the breeze in New Haven, Connecticut on Wednesday, November 11, 2020.

Ted Shaffrey | AP

The Constitution State is aggressively pushing to develop its renewable energy industry. Connecticut is home to the nation’s first “green bank,” which uses public dollars to leverage private investment in renewable energy. The state’s so-called Renewable Portfolio Standard requires electricity providers to offset a set percentage of the energy they generate by purchasing renewable fuel credits. The mandate goes up to 28% next year. The idea is to give them a financial incentive to produce renewable energy themselves, but that is not happening in large numbers yet.

2023 Infrastructure score: 190 out of 390 points (Top States grade: C-)

Climate Extremes Index: 24.6%

Properties at risk: 41.1%

Renewable energy: 8%

2. Florida

A man walks past homes that collapsed onto the beach due to the storm surge and resulting erosion caused by Hurricane Nicole on November 11, 2022 in Wilbur-By-The-Sea, Florida.

Paul Hennessy | Anadolu Agency | Getty Images

If there is any place where the economic impact of vulnerability to climate risks is clear, it is in the Sunshine State. Even as people and businesses flood into Florida, insurance companies are heading for the hills rather than shouldering the risks of natural disasters and climate change. In June, Farmers Insurance said it would stop issuing new policies in Florida in order to “effectively manage risk exposure.” Others, including AAA, are also pulling back by not renewing some policies. The result is that the average cost of homeowners insurance jumped 33% last year, compared to 9% nationally.

2023 Infrastructure score: 227 out of 390 points (Top States grade: B)

Climate Extremes Index: 21.16%

Properties at risk: 61%

Renewable energy: 12.5%

1. Louisiana

A damaged electric line is pictured after Hurricane Ida made landfall in Louisiana, in Kenner, Louisiana, August 30, 2021.

Marco Bello | Reuters

Hurricanes are an unfortunate fact of life in the Pelican State. Louisiana was spared from major storms in 2022, and residents are knocking on wood so far in 2023. But Hurricane Ida slammed the state two years ago, making landfall near Port Fourchon as a strong Category 4 storm on the 16th anniversary of Hurricane Katrina. Ida killed 33 people in Louisiana, making it one of the deadliest storms in state history. Louisiana is at the heart of the U.S. Gulf Coast oil industry, so renewables are hardly top of mind — in fact they are not even close in America’s least sustainable state.

2023 Infrastructure score: 141 out of 390 points (Top States grade: F)

Climate Extremes Index: 23.64%

Properties at risk: 60.3%

Renewable energy: 4.1%

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