• Broad Swath of the Web Knocked Offline by Outage

    A broad swath of the World Wide Web has been knocked offline by an outage at edge cloud CDN specialist Fastly. The company runs an “edge cloud,” which is designed to speed up loading times for websites, protect them from denial-of-service attacks, and help them deal with bursts of traffic. The technology requires Fastly to sit between most of its clients and their users. That means that if the service suffers a catastrophic failure, it can prevent those companies from operating on the net at all.

  • Fastly Global Internet Outage: Why Did So Many Sites Go Down — and What Is a CDN, Anyway?

    If you were having difficulty accessing your favorite website on Tuesday time, you’re not alone. A jaw-dropping number of major websites around the globe suddenly became unavailable with no immediately obvious explanation — before reappearing an hour later. To understand why it happened, you need to know what a CDN (content delivery network) is and how crucial they are to the smooth running of the internet.

  • Envisioning Safer Cities with Artificial Intelligence

    Over the past several decades, artificial intelligence has advanced tremendously, and today it promises new opportunities for more accurate healthcare, enhanced national security and more effective education, researchers say. But what about civil engineering and city planning? How do increased computing power and machine learning help create safer, more sustainable and resilient infrastructure?

  • Analysis: The Texas Electric Grid and the Improvements that Didn’t Come

    After the deadly and expensive electrical outages during a winter freeze in February, Texas lawmakers passed major bills aiming to make such disasters less likely in the future. But there’s still a lot to do.

  • Climate Change Increases Extreme Rainfall and the Chance of Floods

    Climate experts warn that, without urgent action, climate change will continue to cause an increase in the intensity of extreme rainfall that can lead to severe flooding.

  • A 20-Foot Sea Wall? Miami Faces the Hard Choices of Climate Change.

    In Miami, the U.S. metropolitan area that is perhaps most exposed to sea-level rise, the problem is not climate change denialism. Patricia Mazzei writes that “the trouble is that the magnitude of the interconnected obstacles the region faces can feel overwhelming, and none of the possible solutions are cheap, easy or pretty.”

  • Retreat from Rising Seas

    As climate change causes seas to rise, coastal communities around the world face a difficult dilemma: Should they fight to keep their homes and communities above water, or accept that moving inland may be the best option?

  • The Weaponized Web: The National Security Implications of Data

    Open societies have encouraged and promoted rapid technological advancement and market innovation —but both have outpaced democratic governance. Authoritarian powers have noticed the underlying opportunity to exploit the open standards of the democratically regulated digital information environment and undermine democratic values and institutions while shoring up their own regimes. This poses a novel challenge for democracies, which must adapt to compete in this conflict over the data, architecture, and governance framework of the information space without compromising their democratic principles.

  • New Thinking to Translate Infrastructure Dollars into Resilience

    America’s roads, bridges and other public resources and services appear to be suffering from a chronic resilience deficit, and recent cyberattacks appear to reflect gaps in resilience. All these underscore the fact that much of the nation’s infrastructure was built under the assumptions of the past and apparently false expectations about the risks of the future. Rapid changes in infrastructure as well as the threats to which it is exposed are creating new challenges for resilience.

  • Increasing Flood Risks in the U.K.

    As climate change continues to cause unpredictable and extreme weather events around the world, researchers are calling for engineers to rethink how they design for flood prevention. Flood frequency analysis has been the cornerstone of flood risk control, hydraulic structure design, and water resource management, but the researchers say that flood series in most areas do not follow historical patterns.

  • Reframing Infrastructure Security

    Infrastructure has always been a target in warfare, says Mikhail Chester, an ASU professor of civil and environmental engineering. “Think about military aircraft dropping bombs on bridges or railroad lines,” he says. Chester points to the recent ransomware attack that shut down one of America’s largest fuel pipeline networks. “This kind of problem is growing, and it can’t be solved through remedial repairs to old infrastructure,” Chester said.

  • Cyber Attacks Can Shut Down Critical Infrastructure. It’s Time to Make Cyber Security Compulsory

    The 7 May attack on the Colonial Pipeline highlights how vulnerable critical infrastructure such as fuel pipelines are in an era of growing cyber security threats. In Australia, we believe the time has come to make it compulsory for critical infrastructure companies to implement serious cyber security measures.

  • How Coastal Towns Can Meet the Challenge of Sea Level Rise

    A group of Florida students was invited to participate in the community presentation of the “Envision Resilience Nantucket Challenge,” a competition that tasked participating teams with reimaging how Nantucket, a small island off Cape Cod, could meet the challenges of climate change and sea level rise.

  • Why Hurricanes Devastate Some Places over and over Again – a Meteorologist Explains

    Every coastline in the North Atlantic is vulnerable to tropical storms, but some areas are more susceptible to hurricane destruction than others. To understand why as the region heads into what’s forecast to be another busy hurricane season, let’s look more closely at how tropical storms form and what turns them into destructive monsters.

  • Volcanic Eruption: How Long Would It Take to Evacuate Auckland?

    Scientists are working to understand how long it might take for people to move out of harm’s way ahead of a future eruption near Auckland, New Zealand. “The next eruption in the Auckland Volcanic Field could happen anywhere in the existing field, either on the land, or in the sea, so estimating how many people might be impacted carries a lot of uncertainty,” says one expert.