• The fundamental challenges of living with wildfire

    Wildfires can have dramatic impacts on Western landscapes and communities, but human values determine whether the changes caused by fire are desired or dreaded. This is the simple - but often overlooked - message from a collaborative team of researchers.

  • Floods will cost the U.K. billions, but AI can help make sewers the first defense

    The U.K. will need to spend £1 billion a year on flood management to avoid the worst consequences of climate change, according to the national Environment Agency. Coastal defenses – including sea walls, buffer areas and evacuation plans – can help to protect towns and cities against flooding from storm surges. But inland flooding caused by excess rainwater requires more nuanced solutions. Today, artificial intelligence (AI) can use data to help make decisions about how water should flow in and around human settlements, to avoid the worst effects of flooding.

  • As floods increase, cities like Detroit are looking to green stormwater infrastructure

    Urban sprawl meant paving over grasslands and wetlands, making it so water is unable to soak into the ground. Today, that impervious development, coupled with the more intense storms brought by climate change, is making flooding a major issue for many cities. Urban areas are looking for better ways to manage runoff.

  • Carbon dioxide levels in the atmosphere highest in human history

    Atmospheric levels of planet-warming carbon dioxide have hit a record high of more than 415 parts per million. Before the Industrial Revolution in the nineteenth century, carbon dioxide levels fluctuated but never exceeded 300 ppm at any one time over the past 800,000 years. Carbon dioxide levels in the atmosphere broke 400 ppm for the first time in human history in 2013.

  • Better earthquake protection for buildings

    Researchers examine how buildings with externally bonded fiber-reinforced polymer composite retrofits withstood the 30 November 2018 magnitude 7.1 earthquake in Alaska. By assessing how these buildings held up, the researchers hope to help engineers construct buildings that stand up to natural disasters.

  • As planet warms, even little precipitation may disrupt road networks

    A new computer model shows that as more rain falls on a warming planet, it may not take a downpour to cause widespread disruption of road networks. The model combined data on road networks with the hills and valleys of topography to reveal “tipping points” at which even small localized increases in rain cause widespread road outages.

  • Extreme floods associated with distinct atmospheric patterns

    Extreme floods across the continental United States are associated with four broad atmospheric patterns, a machine-learning based analysis of extreme floods found.

  • Maths shows the nature of “tipping points” for climate, eco crises

    Humans need to be wary of breaching a “point of no return” that leads to ecological disaster such as loss of rainforests or irreversible climate change, according to the most detailed study of its kind.

  • Finnish students outperform U.S. students on “fake news” digital literacy tasks

    A recent study revealed students at an international school in Finland significantly outperformed U.S. students on tasks which measure digital literacy in social media and online news. The researchers suggest this may be due to the Finnish and International Baccalaureate curricula’s different way of facilitating students’ critical thinking skills compared to the U.S. system and curriculum.

  • Why do some people believe the Earth is flat?

    Why, despite overwhelming scientific evidence to the contrary, is the flat-Earth movement gaining traction in the twenty-first century? One expert says that, in part, it is due to a general shift toward populism and a distrust in the views of experts and the mainstream media. There is an “increasing distrust in what we once considered to be the gatekeepers of knowledge – like academics, scientific agencies, or the government,” she says. In this kind of environment, “it becomes really easy for once-fringe views to gain traction.”

  • A Seattle quake may cause more damage than expected to reinforced concrete

    Using ground motions generated for a range of simulated magnitude 9 earthquakes in the Pacific Northwest, researchers are testing how well reinforced concrete walls might stand up under such seismic events. The walls may not fare so well, especially within the city of Seattle, the researchers say.

  • Forest fires accelerating snowmelt across western U.S., affecting water supplies

    Forest fires are causing snow to melt earlier in the season, a trend occurring across the western U.S. that may affect water supplies and trigger even more fires, according to a new study. It is a cycle that will only be exacerbated as the frequency, duration, and severity of forest fires increase with a warmer and drier climate.

  • The why, how, where, and what of earthquake early warning

    Earlier this year, Los Angeles became one of the first cities in the country to roll out ShakeAlert – a dedicated earthquake early warning system. Advanced warning of an earthquake has long been a goal for everyone from seismologists to local governments. Especially in cities like Los Angeles, located along the notorious San Andreas fault. But what about cities like Seattle?

  • U.S., Russia, China race to develop hypersonic weapons

    Russia and China have recently touted their progress in developing hypersonic vehicles, which fly much faster than the speed of sound, which is 767 mph. Hypersonic missiles are rocket-boosted to high altitude and may be launched from land, sea or air. Over the past 60 years, U.S. interest in hypersonic vehicles has waxed and waned. Now it seems the U.S. is back in the hypersonic effort in a serious way.

  • Using AI in future hypersonic systems

    A test launch for a hypersonic weapon — a long-range missile that flies a mile per second and faster — takes weeks of planning. So, while the U.S. and other states are racing to deploy hypersonic technologies, it remains uncertain how useful the systems will be against urgent, mobile or evolving threats. Sandia National Laboratories thinks artificial intelligence and autonomy could slash these weeks to minutes for deployed systems.