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  1. Hydrogen fuels

    … to make hydrogen is from fossil fuels, especially natural gas. With this approach, producing hydrogen is responsible for carbon dioxide added to Earth’s atmosphere. Only if the hydrogen … interesting proposition. Being odorless, colorless, and at trace concentrations, hydrogen is easy to overlook, but any …

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  2. Soil carbon sequestration as a climate change solution

    … that soil carbon sequestration is slow stems from its nitrogen and phosphorus contents, which are also lost … fertilizer result in ancillary emissions of nitrous oxide—arguably a greenhouse gas worse than CO2.  Nitrous oxide emissions from soils …

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  3. To Be Equitable, US Urban Green Infrastructure Planning Must Transform

    To Be Equitable, US Urban Green Infrastructure Planning Must … Planning concludes that this will require fundamental transformation in planning processes, and puts forth an … of the Urban Systems Lab. More details and other project publications can be found at www.giequity.org . …

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  4. In the tropics, nitrogen-fixing trees take a hit from herbivores

    In the tropics, nitrogen-fixing trees take a hit from … of the tropical forest carbon sink. By partnering with soil microbes, nitrogen-fixing trees turn atmospheric nitrogen gas into a form of nitrogen that is available to plants. …

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  5. Gary M. Lovett: Scientist, Mentor, Advocate, & Friend

    … early research transformed how scientists calculate forest nitrogen budgets. He was among the first to document that … the eastern US. Dr. Canham notes “The thing that I consider so absolutely remarkable about Gary’s science … & enjoyed very much our discussions about the fate of soil C and N on those plots. I will always remember you! …

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  6. Beech Bark Disease

    … girdle the tree, disrupting its internal nutrient transport system and causing it to deteriorate slowly. … understood, but it may be affected by the level of nitrogen in the tree 1 . Like many plant-eating insects, … have not yet established. No biological control organisms (i.e., predators or parasites of the beech scale insect) are …

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  7. Livestock antibiotics and rising temperatures disrupt soil microbial communities

    … microbial community composition and function, carbon and nitrogen cycling, and interactions among microbes.  They … would become trapped in the soil. Instead, more carbon dioxide is released into the atmosphere as a gas. This effect could turn an important carbon sink into a …

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  8. What's new down on the farm

    … world’s growing population is contributing to greenhouse gas emissions Photo by GetLostMike June 6, … of rice. Similarly the largest human emissions of nitrous oxide (N 2 O) are associated with the microbial processing of nitrogen fertilizers and manure applied to agricultural …

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  9. Ammonia

    Nitrogen Recognizing … is primarily released back to the environment as ammonia gas. The urine of mammals contains urea, which is converted … Patni, 2001, Atmospheric nitrogen compounds II: Emissions, transport, transformation, deposition and assessment. …

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  10. Ocean acidification

    Ocean acidification The rising carbon dioxide content of Earth’s atmosphere will take an … certain oxidized gases, such as sulfur dioxide (SO2) and nitrogen dioxide (NO2), dissolve in water, they make it … dioxide into these drinks, which is emitted as bubbles of gas when we open one. Alkaline waters have a pH above …

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