Confluence

By ICLR | Riverine and urban flood-related news from the Institute for Catastrophic Loss Reduction (ICLR)

Time To Modernize Our National Flood Insurance Program

After an extremely destructive and challenging hurricane season, Americans who were affected are working to recover and rebuild. Assisting them now is critical, but this hurricane season has been a deadly reminder that we must do more to prepare for future flood disasters. We need a long-term …

Insurance

Global warming makes 'biblical' rain like that from Hurricane Harvey much more likely

Houston, you have a problem.<p>The odds of a storm dumping Harvey-like rain on Texas have gone up sixfold in the past 25 years, thanks to man-made climate change, a study said.<p>And looking ahead, the chances will likely triple once again by 2100.<p>In the 1980s and 1990s, there was a 1% chance of a …

Climate Change

Exploring Why Hurricane Harvey Caused Houston's Worst Fooding

Scientists and citizens are still piecing together the story of why the flooding in Houston was so bad. A lot of the damage comes down to how people built the city in the first place.

Texas A&M

San Francisco Bolsters Flood Resilience in Face of Climate Change

(TNS) - With last week’s heat wave done and gone, replaced by cooler temperatures and rain in the forecast for later this week, the San Francisco …

Government Technology

Report: Rising sea levels could flood 1 in 200 Seattle-area homes by end of century

Statewide, about 27,300 homes could be flooded if sea levels rise six feet, including one-fifth of homes in Grays Harbor County.

Climate Change

When the Waters Come, Will Our Cities Survive?: A Future Tense Event in New York

From Superstorm Sandy to the recent devastating effects of Hurricanes Harvey, Irma, and Maria, natural disasters make it difficult to ignore the …

Climate Change

FEMA’s Outdated and Backward-Looking Flood Maps

The recent hurricanes, which inflicted severe damage from Puerto Rico to Texas’ Gulf Coast, have underscored the value of not only ensuring flood …

Maps

Tokyo Is Preparing for Floods ‘Beyond Anything We’ve Seen’

KASUKABE, Japan — The cavernous underground cisterns here north of Tokyo could hold the Statue of Liberty, a scale that underscores the site’s immense task: protecting the world’s most populous metropolis from flooding.<p>Linked by tunnels that divert water away from the region’s most vulnerable …

Japan

FEMA’s Faulty Flood Maps Put Homeowners at Risk

Outdated and Unreliable: FEMA’s Faulty Flood Maps Put Homeowners at Risk<p>By Michael KellerMichael Keller, Mira RojanasakulMira Rojanasakul, David …

National Flood Insurance Program

Designing Resilient Cities That Don’t Flood

A study released by the Carbon Disclosure Project this month finds that 103 cities around the world have a serious risk of flooding. Most of the …

Cities

Preservation of floodplains is flood protection

The silting of rivers and streams leads to problems for fish, mussels, and other aquatic organisms because their habitats disappear. However, not …

Ecology

How Orbital Insight Measured Hurricane Harvey's Flooding Through The Clouds

A few weeks ago, Orbital Insight, one of the startups on the <i>Forbes</i> Next Billion Dollar Startups list, applied its know-how to determine how much flooding Houston endured during Hurricane Harvey.<p>The company, which was founded in 2013 by James Crawford, applies machine learning and artificial …

Tropical Storm Harvey

Where will the deadly floods strike next?

Technology of Business reporter<p><b>With hundreds dead and millions either left homeless, or facing huge damage to their properties, catastrophic flooding has devastated many parts of the world. Nature's fury may seem unstoppable, but can technology at least help us to cope better?</b><p>Savage hurricanes and …

University of Maryland

What would an entirely flood-proof city look like?

The wetter the better. From sponge cities in China to ‘berms with benefits’ in New Jersey and floating container classrooms in the slums of Dhaka, we look at a range of projects that treat storm water as a resource rather than a hazard<p>They call it “pave, pipe, and pump”: the mentality that has …

Cities

We still don’t know how to talk about floods

<i>The author, Brian Bledsoe, is a professor of civil and environmental engineering at the University of Georgia. His research focuses on the interface of hydrology, ecology and urban water sustainability.</i><p>As the tragedies of Harvey and Irma continue to unfold, it’s disconcerting but hardly surprising …

Climate Change

USA threatened by more frequent flooding: Researchers show that the East Coast of the USA is slowly sinking into the sea

Researchers show that the East Coast of the USA is slowly sinking into the sea<p>The East Coast of the United States is threatened by more frequent …

Climate Change

Why governments miscalculate your risk of flooding

Flood maps are often out of date and don’t consider climate change<p>Think your home is safe from flooding? Unfortunately, you're probably wrong. And …

How Coastal Cities Are Evolving to Deal With Extreme Rain

Facing the specter of more and worse rainstorms, these vulnerable areas are turning to innovative urban design<p>Comment on this Story

Weather
National Flood Insurance Program

Future Flood Control: Time To Buy And Bulldoze Houston's Most Flooded Homes

HOUSTON — Harvey’s tally of destruction in the Houston region includes 18 dead, 50,000 rescued, and 500,000 cars waterlogged. “We’ve got probably 30,000 to 40,000 homes that have been destroyed,” said Harris County Judge Ed Emmett. Damage estimates surpass $20 billion. Evacuation orders have been …

National Flood Insurance Program

Why 'cherry-picking' is the solution to our nation's flood insurance disaster

No, the solution to the nation's flood insurance problem won't involve picking fruit - except, perhaps, in a metaphorical sense. However, in the …

Insurance

Time to recognize the basic flaw in our whole approach to flood prevention

How many wake-up calls do we need before we go Dutch?

New Orleans

Climate change shifts timing of European floods

A study conducted by TU Wien and 30 European partners shows that the timing of the floods has shifted across much of Europe, dramatically in some …

Climate Change

Can Congress Bring the National Flood Insurance Program Above Water?

The debate over too-low premiums and repetitive payouts grinds on, even as the thunderheads roll in and the water levels rise.<p>Get those sandbags and storm shutters ready. Peak hurricane season is bearing down on the Atlantic coast. From New Orleans to the Jersey Shore, nothing focuses the mind …

National Flood Insurance Program

A New Model for River Meanders

Every time a river floods, it subtly or drastically changes its path. Scientists have long strived to capture this complex process in mathematical …

Science

Benefits of dikes outweigh costs—effective measures for reducing future flooding

In the first study of its kind, an international team of scientists—including the University of Bristol—has concluded, on a global scale, that the …

Ecology

Mapping Coastal Flood Risk Lags Behind Sea Level Rise

Sea levels are rising and climate scientists blame global warming. They predict that higher seas will cause more coastal flooding through this century and beyond, even in places that have normally been high and dry.<p>But mapping where future floods will strike has barely begun.<p>The Federal Emergency …

Climate Change

3-D models help scientists gauge flood impact: One of the first 3-D RANS simulations of dam breaks in a natural environment performed by researchers

One of the first 3-D RANS simulations of dam breaks in a natural environment performed by researchers<p>Using one of the world's most powerful …