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EAST LANSING, Mich. - Nine of the hottest years in human history have occurred in the past decade. Without a major shift in this climate trajectory, the future of life on Earth is in question, which poses a new question: Should humans, whose fossil fueled society is driving climate change, use technology to put the brakes on global warming?
Michigan State University community ecologist Phoebe Zarnetske is co-lead of the Climate Intervention Biology Working Group, a team of internationally recognized experts in climate science and ecology that is bringing science to bear on the question and consequences of geoengineering a cooler Earth.
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The Science for Disaster Risk Management 2020: acting today, protecting tomorrow , the second of its series, has been produced with the collaboration of more than 300 experts in disaster risk management. The participants come from different disciplines and sectors to provide the reader with accurate and updated information on the consequences that disasters have on key assets of society (population, economic sectors, critical infrastructures, environment and cultural heritage) and how these can be managed. Finally, the report provides a set of recommendations addressed to four target groups of society that can actively work to reduce disaster risk: policymakers, practitioners, scientists and citizens.?
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It is well known that climate-induced sea level rise is a major threat. New research has found that previous ice loss events could have caused sea-level rise at rates of around 3.6 metres per century, offering vital clues as to what lies ahead should climate change continue unabated.
A team of scientists, led by researchers from Durham University, used geological records of past sea levels to shed light on the ice sheets responsible for a rapid pulse of sea-level rise in Earth s recent past.
Geological records tell us that, at the end of the last ice age around 14,600 years ago, sea levels rose at ten times the current rate due to Meltwater Pulse 1A (MWP-1A); a 500 year, ~18 metre sea-level rise event.
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Many slopes in the Campania region are covered with layers of volcanic soil, the result of repeated eruptions over the course of millennia. As the impacts of climate change worsen, including the occurrence of very intense and short rainfall in localized areas, there is a growing need, especially in this and other Italian regions that are vulnerable to landslides, to understand the dynamics that induce such events more precisely and develop models that can predict them. When employed through adequate early warning systems, these tools can support decision-makers in adopting effective and efficient measures to protect people and the areas themselves from landslides.
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IMAGE: Using Sandia National Laboratories longstanding expertise in probabilistic modeling and machine learning algorithms from the U.S. Naval Research Laboratory, the researchers determined the probability of finding methane hydrate off the. view more
Credit: Image courtesy of William Eymold/Sandia National Laboratories
RALEIGH, N.C. Methane hydrate, an ice-like material made of compressed natural gas, burns when lit and can be found in some regions of the seafloor and in Arctic permafrost.
Thought to be the world s largest source of natural gas, methane hydrate is a potential fuel source, and if it melts and methane gas is released into the atmosphere, it is a potent greenhouse gas. For these reasons, knowing where methane hydrate might be located, and how much is likely there, is important.