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Warming Oceans Could Drive Antarctic Ice Sheet Collapse, Sea Level Rise
In the U.S., four out of ten people live in populous coastal areas, making them vulnerable to the effects of rising seas. Seventy percent of the world’s largest cities are located near a coast. Globally, by 2010, seas had already risen about 10 inches above their average levels in pre-industrial times. A new study suggests the Western Antarctic Ice Sheet is less stable than researchers once thought, and that its collapse would accelerate sea level rise.
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Building Standards Give Us False Hope. There's No Such Thing as a Fireproof House
Bushfires have killed 33 people and destroyed nearly 3,000 houses across Australia so far this fire season. Canberra is under threat right now. It isn’t only houses. Significant commercial buildings have been destroyed, among them Kangaroo Island’s iconic Southern Ocean Lodge. In New South Wales alone, 140 schools have been hit. Many require extensive work. Trouble is, Australia’s National Construction Code provides false, and dangerous, hope. The sad truth is that any practical building that is exposed to an intense bushfire will probably burn down, whether it complies with Australia’s National Construction Code or not.
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Across the U.S., States Are Bracing for More Climate-Related Disasters
Officials in states across the United States are calling for huge investments to mitigate the effects of wildfires, flooding, hurricanes, droughts, and other natural disasters made more devastating and frequent by climate change. Alex Brown writes that “Even states whose leaders don’t publicly acknowledge the existence of climate change, such as Texas and South Carolina, have applied for federal dollars citing ‘changing coastal conditions’ or ‘unpredictability’.”
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Magnitude 7.7 Earthquake in the Caribbean Sea between Jamaica and Cuba
A powerful magnitude 7.7 earthquake struck in the Caribbean Sea between Jamaica and Cuba on Tuesday. The earthquake prompted initial fears of a tsunami. Residents in multi-story building in Havana, Cuba, were advised to evacuate their buildings. In Jamaica, Belize, and Cayman Islands roads were cracked and sewage spilled from broken mains. No casualties were reported.
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Preparing for the Big One: Oregon to Fund ShakeAlert
With a vision for preparing the state for a large Cascadia earthquake, Oregon Gov. Kate Brown announced on Monday a resiliency agenda for the upcoming legislative session that would include $7.5 million in funding to the University of Oregon to build out the ShakeAlert earthquake early warning system.
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Reducing Risk, Empowering Resilience to Disruptive Global Change
Five-hundred-year floods. Persistent droughts and heat waves. More devastating wildfires. As these and other planetary perils become more commonplace, they pose serious risks to natural, managed, and built environments around the world. Assessing the magnitude of these risks over multiple decades and identifying strategies to prepare for them at local, regional, and national scales will be essential to making societies and economies more resilient and sustainable. A workshop highlights how MIT research can guide adaptation at local, regional, and national scales.
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Sea Level Rise: Major Economic Impact in the Absence of Further Climate Action
Rising sea levels, a direct impact of the Earth’s warming climate, is intensifying coastal flooding. The findings of a new study show that the projected negative economy-wide effects of coastal flooding are already significant until 2050, but are then predicted to increase substantially towards the end of the century if no further climate action on mitigation and adaptation is taken.
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Climate Costs Smallest If Warming Is Limited to 2°C
Climate costs are likely smallest if global warming is limited to 2 degrees Celsius. The politically negotiated Paris Agreement is thus also the economically sensible one, Potsdam researchers find in a new study. Using computer simulations of a model by U.S. Nobel Laureate William Nordhaus, they weight climate damages from, for instance, increasing weather extremes or decreasing labor productivity against the costs of cutting greenhouse gas emission by phasing out coal and oil. Interestingly, the economically most cost-efficient level of global warming turns out to be the one more than 190 nations signed as the Paris Climate Agreement. So far however, CO2 reductions promised by nations worldwide are insufficient to reach this goal.
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It Is Now 100 Seconds to Midnight
The Bulletin of the Atomic Scientists’ Doomsday Clock is now closer to midnight than ever in its history. The Bulletin cites worsening nuclear threat, lack of climate action, and rise of “cyber-enabled disinformation campaigns” in moving the clock hand. December 2020 marks the 75th anniversary of the first edition of the Bulletin of the Atomic Scientists, initially a six-page, black-and-white bulletin and later a magazine, created in anticipation that the atom bomb would be “only the first of many dangerous presents from the Pandora’s Box of modern science.”
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Better – and Broader – Contingency Plans
Life, they say, is uncertain. This is why governments and businesses make contingency plans that detail what to do in a disaster and how to handle the unexpected. But some events can be catastrophic across a region, and that calls for a more comprehensive approach.
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Sea-Level Rise Could Trigger Migration from Coastal Areas to Inland Cities in U.S.
When Hurricane Harvey slammed into the Texas coast in 2017, displaced residents flocked inland, trying to rebuild their lives in the disaster’s aftermath. Within decades, the same thing could happen at a much larger scale due to rising sea levels, says a new study. The researchers say that climate change-driven sea-level rise could trigger mass migration of Americans to inland cities.
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2019: Economic Losses from Natural Disasters Top $232 billion in 2019
A new report from Aon shows that 409 natural catastrophe events of 2019 resulted in economic losses of $232 billion. Of that total, private sector and government-sponsored insurance programs covered $71 billion. The costliest individual peril was inland flooding, which caused economic losses globally of $82 billion, followed by tropical cyclone, at $68 billion.
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Climate Change Means the U.S. Must Start Building Big Things Again
There used to be a time when the United States was adept at planning and building big projects – the highway system, putting a man on the moon, and more. Not anymore, James Temple writes. He notes that nearly every giant infrastructure project in the United States suffers from massive delays and cost overruns, and this is when they are not shut down altogether before completion. “The U.S. has become terrible at building big things, and negligent in even maintaining our existing infrastructure,” he writes, adding: “That all bodes terribly for our ability to grapple with the coming dangers of climate change, because it is fundamentally an infrastructure problem.”
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Flooding Damage to Levees Is Cumulative—and Often Invisible
Recent research finds that repeated flooding events have a cumulative effect on the structural integrity of earthen levees, suggesting that the increase in extreme weather events associated with climate change could pose significant challenges for the nation’s aging levee system.
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From Bush Fires to Terrorism: How Communities Become Resilient
The world has watched in sympathy as Australia has come to terms with the ravages of the worst bush fires on record. Communities have been devastated by this crisis, but many have shown incredible resilience in banding together to support one another through the harrowing experience. Challenges to communities come in many guises – social, political, economic, climatic, technological and cultural. Our study looked at ways of building community resilience in response to extreme events.
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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.