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Identifying sources of coastal resiliency
As extreme weather events become more commonplace, regions of the world that get hit the hardest are often left scrambling to put the pieces of their homeland back together. ASU’s Sian Mooney, an economist, recently returned from a trip to Cuba, where the economist attended a tri-national workshop on the theme: “Enhancing Resilience of Coastal Caribbean Communities.” The workshop’s participants have been charged with defining and identifying sources of coastal resiliency and then working to implement them in the region over the next few years.
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Record high CO2 emissions – after 3-year hiatus
Global emissions of carbon dioxide from burning fossil fuels have risen again after a three-year hiatus, according to new figures from the Global Carbon Project (GCP). The GCP report reveals that global emissions from all human activities will reach 41 billion tons in 2017, following a projected 2 percent rise in burning fossil fuels.
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Artificially cooling the planet could have devastating effects
Geoengineering — the intentional manipulation of the climate to counter the effect of global warming by injecting aerosols artificially into the atmosphere — has been mooted as a potential way to deal with climate change. Proposals to reduce the effects of global warming by imitating volcanic eruptions could have a devastating effect on global regions prone to either tumultuous storms or prolonged drought, new research has shown.
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U.S. had 3rd warmest and 2nd wettest year to date
October typically ushers in those crisp, sunny days of fall. But last month was no ordinary October, as warm and wet conditions dampened peak leaf viewing across many parts of the Midwest and New England and fires devastated parts of Northern California and the West.
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Human-caused warming increasing rate of heat record-breaking around world
A new study finds human-caused global warming is significantly increasing the rate at which hot temperature records are being broken around the world. Global annual temperature records show there were 17 record hot years from 1861 to 2005. The new study examines whether these temperature records are being broken more often and if so, whether human-caused global warming is to blame.
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Sandy five years later. What have we learned?
Five years ago, Post-tropical Cyclone Sandy struck at high tide, driving catastrophic storm surge into coastal New Jersey and New York unlike anything seen before. Thirty-four New Jersey residents lost their lives. Hundreds of thousands of homes and businesses were destroyed, causing over $62 billion in damage. Five years later some areas have recovered. Some have not.
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Improving public safety during severe weather, other disasters
Our ability to observe and predict severe weather events and other disasters has improved markedly over recent decades, yet this progress does not always translate into similar advances in the systems used in such circumstances to protect lives. A more cohesive alert and warning system that integrates public and private communications mechanisms and adopts new technologies quickly is needed to deliver critical information during emergency situations. At the same time, better understanding of social and behavioral factors would improve the ways we communicate about hazards, inform response decisions such as evacuations, develop more resilient urban infrastructure, and take other steps to improve weather readiness.
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As wildfires expand, fire science needs to keep up
In the month of October nearly 250,000 acres, more than 8,000 homes and over 40 people fell victim to fast-moving wildfires in Northern California, the deadliest and one of the costliest outbreaks in state history. Now is the time to wrestle with hard questions. Why did communities that were deemed safe suffer major damage? Should they be rebuilt in the same way? Are there better ways to fight extreme fires and limit their impact? How can emergency planners prepare better for scenarios where full evacuation is not possible? Fire conditions are constantly evolving, and basic research coupled with engineering solutions must keep up. Designing more resilient communities and infrastructure and protecting people more effectively are not onetime goals – they are constant. Currently nations are failing to meet the challenge, and impacts on communities are increasing.
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Global warming is here, caused by human activity: Massive federal government report
The White House allowed the release on Friday of a report by U.S. government’s scientists – the Climate Science Special Report – which offers voluminous scientific evidence that climate change is real, it is already here, and that it has been caused – and is being exacerbated – by human activity. The report, which is mandated by Congress, is the most comprehensive report on climate change ever produced. The study, noting that the planet is now the warmest it has been in the history of modern civilization, says that “it’s extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming since the mid-twentieth century.”
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Wildfire early warning system could prevent spring blazes
Researchers have developed a new early warning system to predict when and where human-caused wildfires are most likely to occur in the spring. Using satellite images of vegetation, the researchers can forecast where wildfire risk peaks in boreal forests by tracking moisture in fuel sources like leaves.
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Greenhouse gas concentrations in the atmosphere surge to new record
Concentrations of carbon dioxide in the atmosphere surged at a record-breaking speed in 2016 to the highest level in 800,000 years, according to the World Meteorological Organization’s Greenhouse Gas Bulletin. The abrupt changes in the atmosphere witnessed in the past seventy years are without precedent. Globally averaged concentrations of CO2 reached 403.3 parts per million in 2016, up from 400.00 ppm in 2015 because of a combination of human activities and a strong El Niño event. Concentrations of CO2 are now 145 percent of pre-industrial (before 1750) levels.
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With more superstorms predicted, there’s a dream project to keep New York above water
Five years ago, on 29 October 2012, the coasts of New York and New Jersey were devastated by a rare late-October superstorm. Superstorm Sandy killed seventy-two people in the United States and caused more than $70 billion in damage. Over the next thirty years, floods of 7.4 feet or more, which used to occur in the New York area once every 500 years and are now happening every 25, could strike as frequently as every five years. Scientists say that sea-level rise caused by climate change is the biggest factor. One big idea to prevent massive destruction from the next, inevitable superstorm: A constellation of giant underwater gates which would rise in New York Harbor and beyond when disaster looms.
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Rethinking the role of the private sector in disaster relief
Natural disasters have filled the news in recent months, occurring so frequently that they seem to intimate apocalypse: wildfires, earthquakes, hurricanes. Global damages from disaster continue apace—currently pegged between $250-300 billion per year> But as national and international media coverage of these events recedes, the local effects persist—often for years. Small businesses, which account for the vast majority of enterprises in the U.S. and employ half of the private-sector workforce, are particularly vulnerable when disaster strikes
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Why were California’s wine country fires so destructive?
As of late October more than a dozen wildfires north of San Francisco had killed more than 40 people, burned approximately 160,000 acres and destroyed more than 7,000 structures. The path of the destructive 2017 Tubbs fire in Napa and Sonoma counties mirrors that of the Hanley fire of 1964. Strikingly, though, no lives were lost during the Hanley fire and only 29 structures were destroyed. Why did these two fires, 50 years apart, burn on the same general landscape, under similar extreme winds, with such different human impacts? Fire scientists will study these events intensively to parse out the relative importance of various factors. But it is clear that two factors probably were major contributors: wind and population growth. Drought and warmer climates have made wildfires a year-round hazard in California. Expanded urban development, in tandem with hot winds, seems to be the primary reason for the destruction this year.
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Communications system that can withstand natural disasters
In the wake of natural disasters which have brought communication to a standstill, researchers have been leading an international research team to tackle the problems of maintaining communications under hostile conditions. A researcher at Queen’s University Belfast has been shortlisted for the 2017 Newton Prize after he created a robust wireless communications system which can battle through an earthquake, tsunami or hurricane.
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More headlines
The long view
Trump Aims to Shut Down State Climate Policies
President Donald Trump has launched an all-out legal attack on states’ authority to set climate change policy. Climate-focused state leaders say his administration has no legal basis to unravel their efforts.