• Natural measures to prevent floods are not a 'silver bullet'

    Measures such as river restoration and tree planting aim to restore processes that have been affected by human activities like farming, land management and house-building. Natural flood management is an area of increasing interest for policy makers, but its implementation can present a complex balancing act between the needs of different groups, including the public, farmers and land owners. Mixed messages about their effectiveness and the scale needed to implement natural flood management measures successfully add to the uncertainty surrounding their benefits. Now a team of experts, led by Dr Simon Dadson of the School of Geography and the Environment at the University of Oxford, has compiled evidence on natural flood management to inform policy decision-making and show where there are still crucial gaps in knowledge. The article shines a light on the scientific evidence available from a variety of sources, ranging from field data to model projections and expert opinion.

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  • Outwitting climate change with a plant 'dimmer'?

    Plants possess molecular mechanisms that prevent them from blooming in winter. Once the cold of win-ter has passed, they are deactivated. However, if it is still too cold in spring, plants adapt their blooming behavior accordingly. Scientists from the Technical University of Munich (TUM) have discovered genetic changes for this adaptive behavior. In light of the temperature changes resulting from climate change, this may come in useful for securing the production of food in the future.

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  • NASA Study Confirms Biofuels Reduce Jet Engine Pollution

    Using biofuels to help power jet engines reduces particle emissions in their exhaust by as much as 50 to 70 percent, in a new study conclusion that bodes well for airline economics and Earth’s environment.

    The findings are the result of a cooperative international research program led by NASA and involving agencies from Germany and Canada, and are detailed in a study published in the journal Nature.

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  • NSF awards $5.6 million to establish new arctic Long-Term Ecological Research site

    The National Science Foundation (NSF) has made a $5.6 million, five-year grant to establish a Long-Term Ecological Research (LTER) site along the northern Alaskan coast that will focus on the interactions between land and ocean that shape coastal ecosystems in the Arctic over different time scales.

    Researchers at the Beaufort Sea Lagoons LTER site will study food webs, which support large-scale coastal fisheries and more than 150 species of migratory birds and waterfowl. Long-term changes along the northern Alaska coast have already affected the types of fish and other creatures that live in the lagoons, and are expected to continue to do so. The LTER research team will collaborate with members of local communities, including the Iñupiat, and with the U.S. Fish and Wildlife Service, which manages the Arctic National Wildlife Refuge.

     

     

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  • NASA Spots Sub-Tropical Storm 11S Still Swirling

    Once a tropical storm, now a sub-tropical storm, the remnants of the tropical low pressure area formerly known as 11S was spotted by NASA's Aqua satellite, still spinning in the Southern Indian Ocean.

    On March 14 at 2230 UTC (6:30 p.m. EST) the remnants of Tropical Cyclone 11S were located near 29.8 degrees south latitude and 52.4 degrees east longitude, about 530 nautical miles south-southwest of La Reunion Island.

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  • Optical fingerprints can reveal environmental gases

    More efficient sensors are needed to be able to detect environmental pollution. Researchers at Chalmers University of Technology have proposed a new, sophisticated method of detecting molecules with sensors based on ultra-thin nanomaterials. The novel method could improve environmental sensing in the future. The results are published in the scientific journal Nature Communications.

    “This could open up new possibilities for the detection of environmental gases. Our method is more robust than conventional sensors, which rely on small changes in optical properties”, says Maja Feierabend, PhD student at the Department of Physics and the main author of the article from Chalmers University of Technology and Technische Universität Berlin.

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  • What makes farmers try new practices?

    Change is never easy. But when it comes to adopting new agricultural practices, some farmers are easier to convince than others.

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  • Early Earth Had a Hazy, Methane-filled Atmosphere

    More than 2.4 billion years ago, Earth’s atmosphere was inhospitable, filled with toxic gases that drove wildly fluctuating surface temperatures. Understanding how today’s world of mild climates and breathable air took shape is a fundamental question in Earth science.

    New research from the University of Maryland, the University of St. Andrews, NASA’s Jet Propulsion Laboratory, the University of Leeds and the Blue Marble Space Institute of Science suggests that long ago, Earth’s atmosphere spent about a million years filled with a methane-rich haze. This haze drove a large amount of hydrogen out of the atmosphere, clearing the way for massive amounts of oxygen to fill the air. This transformation resulted in an atmosphere much like the one that sustains life on Earth today.

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  • New Materials Could Turn Water into the Fuel of the Future

    Researchers at Caltech and Lawrence Berkeley National Laboratory (Berkeley Lab) have—in just two years—nearly doubled the number of materials known to have potential for use in solar fuels.

    They did so by developing a process that promises to speed the discovery of commercially viable solar fuels that could replace coal, oil, and other fossil fuels.

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  • Scientists harness solar power to produce clean hydrogen from biomass

    A team of scientists at the University of Cambridge has developed a way of using solar power to generate a fuel that is both sustainable and relatively cheap to produce. It’s using natural light to generate hydrogen from biomass.

    One of the challenges facing modern society is what it does with its waste products. As natural resources decline in abundance, using waste for energy is becoming more pressing for both governments and business.

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