• Prescribed Forest Fire Frequency Should Be Based on Land Management Goals

    In recent decades, scientists and land managers have realized the importance of controlled forest fires for reaching specific forest management objectives. However, questions remain about how often forests should be burned. Now, researchers at the University of Missouri have studied forests subjected to different frequencies of fires to determine what effects fire can have on oak forests over long periods of time. They found that the frequency of prescribed forest fires should be determined based on the long-term goals of land managers.

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  • Banned industrial solvent sheds new light on methane mystery

    Since 2007, scientists have been searching to find the cause of a sudden and unexpected global rise in atmospheric methane, a potent greenhouse gas, following almost a decade in which concentrations had stayed relatively constant.

    Recent studies have explored a range of possible causes. Suggestions have included a rise in oil and natural gas extraction, increased emissions from tropical wetlands or increases in emissions from growing East Asian economies.

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  • Florida Manatees Likely to Persist For At Least 100 Years—US Geological Survey

    Florida’s iconic manatee population is highly likely to endure for the next 100 years, so long as wildlife managers continue to protect the marine mammals and their habitat, a new study by the US Geological Survey and the Florida Fish and Wildlife Research Institute has found.

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  • Scientists Evaluate Ways to Save Hawaiian Honeycreeper

    A new study evaluates conservation actions that could save the iconic Hawaiian Honeycreeper bird, also known as the “Iiwi,” providing land managers with guidance on how to save this important pollinator. The study demonstrates how the movement of Iiwi across the slopes of Hawaii’s volcanos in search of nectar from flowers can increase their risk of contracting disease and dying.

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  • Huge permafrost thaw can be limited by ambitious climate targets

    Global warming will thaw about 20% more permafrost than previously thought, scientists have warned; potentially releasing significant amounts of greenhouse gases into the Earth’s atmosphere.

    A new international research study, including climate change experts from the University of Leeds, University of Exeter and the Met Office, reveals that permafrost is more sensitive to the effects of global warming than previously thought.

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  • Assessing the impact of climate risks on the financial system

    In the wake of 2015 Climate Paris Agreements to limit global temperature below 2°C above pre-industrial levels, many governmental and private stakeholders have advocated for the introduction of policies to mitigate climate change. This would affect directly only the fossil-fuel and utility sector, but it would also expose indirectly many other economic sectors, in particular the energy-intensive sectors. The financial system can be affected due to its exposure to firms in the form of equity shares, bonds holdings and loans. However, the impact of climate policies on the financial system has remained unclear so far.

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  • Americans used more clean energy in 2016

    Americans used more renewable energy in 2016 compared to the previous year, according to the most recent energy flow charts released by Lawrence Livermore National Laboratory. Overall, energy consumption was nearly flat.

    Each year, the Laboratory releases energy flow charts that illustrate the nation's consumption and use of energy. Americans used 0.1 quads (quadrillion BTU), more in 2016 than in 2015. A BTU, or British Thermal Unit, is a unit of measurement for energy; 3,400 BTUs is equivalent to about 1 kilowatt-hour.

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  • Wildfire experts predict large, high-intensity forest fires will increase

    When it comes to large, high-intensity forest fires, we can expect to see a lot more in the coming years, according to South Dakota State University professor Mark Cochrane, a senior scientist at the Geospatial Sciences Center of Excellence.

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  • Greenhouse gas effect caused by mangrove forest conversion is quite significant

    Clear-cutting of tropical mangrove forests to create shrimp ponds and cattle pastures contributes significantly to the greenhouse gas effect, one of the leading causes of global warming, new research suggests.

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  • Study: Warm Atlantic waters contribute to sea ice decline

    A University of Alaska Fairbanks study has determined that warmer water migrating from the Atlantic Ocean is a surprisingly powerful contributor to Arctic sea ice decline.

    Research led by Igor Polyakov, a professor at UAF’s International Arctic Research Center and College of Natural Science and Mathematics, has found that Atlantic currents contribute to sea ice loss in the Arctic Ocean at a rate comparable to warming air temperatures.

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