• Comparing Water Risk Tools for Companies and Investors

    Faced with worsening water security across the globe, companies and investors are increasingly concerned about the water risks faced by their operations, supply chains and investments – and looking for tools to help to assess these risks. New report details similarities and differences between three leading water tools.

  • Harnessing Wave Power to Rebuild Islands

    Many island nations, including the Maldives in the Indian Ocean, are facing an existential threat as a result of a rising sea level induced by global climate change. Researchers are testing ways of harnessing nature’s own forces to help maintain and rebuild threatened islands and coastlines.

  • As Sea Levels Rise, Are We Ready to Live Behind Giant Walls?

    Of all the many varied impacts in a warming planet, sea level rise is one of the most straightforward to predict because sea water expands as it warms and because extra water is flowing from melting glaciers and ice sheets. Given the costs of flooded coastal cities, European Commission scientists suggest that it would save money in the long run to build improved sea defenses around 70% of the continent’s coastline. Do we really want to live in a world in which we all live behind huge walls? Is this the only way to adapt?

  • Park-Like Tsunami Defenses: Sustainable Alternative to Towering Seawalls

    In tsunami preparedness, it turns out there can be strength in beauty. Rows of green hills strategically arranged along coastlines can help to fend off destruction from tsunamis while preserving ocean views and access to the shore. For some communities, they may offer a better option than towering seawalls.

  • Sea Level Could Rise More than 1 Meter by 2100 if Emission Targets Are Not Met

    Global mean sea-level rise could exceed 1 meter by 2100 and 5 meters by 2300 with unchecked emissions, a survey among 100 leading international experts finds. The risk assessment is based on the increasing body of knowledge of the systems involved – while the scientists highlight the remaining uncertainties, they say it is clear now that previous sea-level rise estimates have been too low.

  • Cities Will Endure, but Urban Design Must Adapt to Coronavirus Risks and Fears

    The long-term impacts of coronavirus on our cities are difficult to predict, but one thing is certain: cities won’t die. Diseases have been hugely influential in shaping our cities, history shows. Cities represent continuity regardless of crises – they endure, adapt and grow. Silvia Tavares and Nicholas Stevens write in The Conversation that urban designers and planners have a long-term role in ensuring urban life is healthy. To fight infectious diseases, cities need well-ventilated urban spaces with good access to sunlight. The design of these spaces, and public open spaces in particular, promotes different levels of sociability. Some spaces congregate community and are highly social. Others may act as urban retreats where people seek peace with their coffee and book. How urban spaces perform during disease outbreaks now also demands our close attention.

  • An Atomic Catch 22: Climate Change and the Decline of America's Nuclear Fleet

    Nuclear energy in the United States has become deeply unprofitable in the last decade, driven by a combination of aging infrastructure and other electricity sources like renewables and natural gas simply becoming cheaper to build and operate. While some in the environmental community may cheer nuclear’s decline, others are concerned. Love it or hate it, nuclear plays a unique role in the American electric sector, one for which we currently have no market-ready replacement, and its decline will likely make other environmental issues, particularly climate change, harder to solve.

  • Changes in Snowmelt Threaten Farmers in Western U.S.

    Farmers in parts of the western United States who rely on snowmelt to help irrigate their crops will be among the hardest hit in the world by climate change, a new study reveals. The study pinpointed basins globally most at risk of not having enough water available at the right times for irrigation because of changes in snowmelt patterns. Two of those high-risk areas are the San Joaquin and Colorado river basins in the western United States.

  • Waterfront Development Added Billions to Property Values Exposed to Hurricane Florence

    Rapid development in flood-prone zones during recent decades helped boost the amount of property exposed to 2018’s devastating Hurricane Florence substantially, a new study says. It estimates that the value of property in North Carolina and South Carolina potentially exposed to flooding at $52 billion—$42 billion more than at the start of the century (in 2018 dollars). While much development took place between 1950 and 2000, financial risk rose quickly afterward because much of it clustered along coastlines and adjacent to rivers and lakes, where buildings were more vulnerable to flooding.

  • Irrigation Expansion Could Feed 800 Million More People

    Agriculture, which accounts for 90 percent of global water use, is the largest driver of water scarcity worldwide, and it is often the most vulnerable and disadvantaged populations that suffer the severest consequences. A new study suggests that there is enough locally available water to expand irrigation over 140 million hectares of agricultural lands.

  • Consequences Remain Decades After Chernobyl Disaster: UN

    The United Nations says persistent and serious long-term consequences remain more than thirty years after the explosion and fire at the Chernobyl nuclear power plant in Ukraine. The world body is marking International Chernobyl Disaster Remembrance Day on 26 April, the 34th anniversary of the accident that spread a radioactive cloud over large parts of Belarus, Ukraine, and Russia. The anniversary is being marked after fires recently burned in the 30-kilometer exclusion zone around the plant, raising concerns about the potential release of radioactive particles into the air.

  • U.K.: Parliamentary Opposition to Huawei’s 5G Deal Growing Significantly

    Support in the British Parliament for allowing Huawei a role in Britain’s 5G network is collapsing. In January, the U.K. government granted Huawei approval to supply 5G technologies for parts of the U.K. network – with some restrictions, which critics of the deal say are meaningless. The government’s plan requires an act of Parliament to take legal effect, but the opposition to the deal among members of Prime Minister Boris Johnson’s Conservative Party has been steadily growing, especially in light of China’s lack of transparency regarding the coronavirus epidemic. Observers now say that the hardening of opposition to the deal among rank-and-file Conservative MPs will make it difficult — if not impossible — to get the legislation passed.

  • New Flood Damage Framework to Help Planners Prepare for Sea-Level Rise

    Scientists agree that sea levels will continue to rise this century, but projections beyond 2050 are much more uncertain regarding exactly how much higher ocean levels will be by 2100. While actions to protect against 2050 sea-level rise have a secure scientific basis, this range in late-century estimates makes it difficult for coastal communities to plan their long-term adaptation strategies.

  • Deepwater Horizon Oil Spill 10 Years On: What Did Scientists Learn?

    Ten years ago, a powerful explosion destroyed an oil rig in the Gulf of Mexico, killing 11 workers and injuring 17 others. Over a span of 87 days, the Deepwater Horizon well released an estimated 168 million gallons of oil and 45 million gallons of natural gas into the ocean, making it the largest accidental marine spill in history.

  • Improving Accuracy of Storm Surge Analysis

    Accurately predicting how many people are at risk due to sea level rise and storm surges has always challenged scientists, but a new method is improving models that account for the impact of these natural occurrences. A new model developed by international team of scientists can be used to better understand and prepare for the impacts of climate change.