Acid Rain

Acid Rain News -- ScienceDaily Learn the cause and effect of acid rain. Read environmental news articles on how acid rain takes nutrients from the soil, leads to stunted forests and more.

  • Genetic basis for how harmful algae blooms become toxic
    on September 28, 2018 at 5:13 pm

    Scientists have uncovered the genetic basis for the production of domoic acid, a potent neurotoxin produced by certain harmful algae blooms. […]

  • New, highly stable catalyst may help turn water into fuel
    on September 28, 2018 at 5:13 pm

    Breaking the bonds between oxygen and hydrogen in water could be a key to the creation of hydrogen in a sustainable manner, but finding an economically viable technique for this has proved difficult. Researchers report a new hydrogen-generating catalyst that clears many of the obstacles -- abundance, stability in acid conditions and efficiency. […]

  • Weathering rates for mined lands exponentially higher than unmined sites
    on September 25, 2018 at 6:04 pm

    A new study found a dramatic increase in the chemical weathering rates of mined landscapes, which are melting away bedrock up to 45 times faster than unmined areas. The weathering has global consequences for the cycling of sulfur, a key nutrient for all life forms. […]

  • Mineral weathering from thawing permafrost can release substantial CO2
    on September 19, 2018 at 3:58 pm

    The amount of carbon dioxide released from thawing permafrost might be greater than previously thought, according to a new study by ecologists. The research is the first to document the potential for substantial contributions of CO2 from thawing permafrost to the atmosphere through an inorganic process called mineral weathering. […]

  • New source of formic acid discovered over Pacific, Indian oceans
    on September 5, 2018 at 5:18 pm

    Insights from experiments designed to push chemical systems far from equilibrium allowed an international group of researchers to discover a new major source of formic acid over the Pacific and Indian oceans. […]

  • California: Global warming, El Niño could cause wetter winters, drier conditions in other months
    on September 4, 2018 at 7:04 pm

    New research indicates that what future precipitation California gets will be pretty much limited to the winter months -- think deluge-type rainfall rather than snow -- and non-winter months will be even dryer than usual, with little or no rain at all. […]

  • Ancient African herders had lasting ecological impact on grazed lands
    on August 29, 2018 at 5:32 pm

    Ancient animal herders added to the ecological richness and diversity of the African savanna thousands of years ago -- an effect that persists to the present day, a new study finds. The herders' practice of penning their cattle, goats and sheep at night created nutrient-rich grassy glades that still attract wildlife and have increased habitat diversity in the region, researchers report. […]

  • Invasive plants: Scientists examine the relative impact of proximity to seed sources
    on August 17, 2018 at 4:53 pm

    A new study tackles an important, unresolved question in the biology of invasive plants. Which is most important to the establishment of new invasive communities -- proximity to seed sources, canopy disturbance, or soil disturbance? […]

  • Does rain follow the plow?
    on August 10, 2018 at 1:15 pm

    There are many factors that play a role in whether or not it rains, and new research shows that human activity may be one of them. […]

  • Rain-on-snow flood risk to increase in many mountain regions of the western U.S., Canada
    on August 6, 2018 at 8:27 pm

    Flooding caused by rain falling on snowpack could more than double by the end of this century in some areas of the western United States and Canada due to climate change. […]

  • Wetter soil is leading to reduced methane gas absorption
    on August 6, 2018 at 7:20 pm

    A new paper finds that the existing effects of global warming are decreasing the soil's ability to absorb methane gas. The paper details findings from a study that measured forest-soil uptake of methane gas in a variety of locations and settings over a 13- to 27-year span and detected decreases of 53 to 89 percent. […]

  • Soil phosphorus availability and lime: More than just pH?
    on August 1, 2018 at 12:40 pm

    Plants can't do without phosphorus. But there is often a 'withdrawal limit' on how much phosphorus they can get from the soil. A new study looks at how liming, soil management history and enzymes relate to plants' access to phosphorus. […]

  • Why eastern U.S. air pollution levels are more stagnant in winter
    on July 23, 2018 at 7:25 pm

    Observations captured during a 2015 field campaign show why winter haze has remained high, despite reduced emissions. […]

  • Reining in soil's nitrogen chemistry
    on July 11, 2018 at 4:24 pm

    The compound urea is currently the most popular nitrogen soil fertilizer. It's a way to get plants the nitrogen they need to grow. There's just one problem with urease: it works too well! New research suggests farmers may have a choice in how they slow the release of nitrogen, depending on their soil's acidity. […]

  • Dust carried by rainwater across Texas: Study sheds light on composition
    on July 10, 2018 at 12:29 am

    Across the US Southwest, severe drought and land?use change are projected to increase in the future, contributing to more frequent and intense dust storms and eventually dry dust fallout and dust washout from the atmosphere with rain. How will Dust Bowl-like conditions affect raining dust events? […]

  • Utah soil's slippery grip on nutrients
    on July 2, 2018 at 6:56 pm

    Lawns in the Salt Lake Valley up to 100 years old are not yet saturated in the nutrient nitrogen, which is added by fertilizer, according to a new study. The result is surprising, since previous studies in the Eastern US suggested that fertilized soil would become saturated with nitrogen within a few decades. […]

  • Plants in Africa 'green up' ahead of rainy season
    on July 2, 2018 at 5:38 pm

    A study has shown the greening up of vegetation prior to the rainy season in Africa is more widespread than previously understood. […]

  • Old Man River's unique chemical signature
    on June 13, 2018 at 3:36 pm

    Human activity greatly impacts the natural chemistry of the largest river in North America -- the Mississippi River. In a new, large-scale study, geologists have identified a unique chemical signature in the river. […]

  • Simple chemical process that may have led to the origin of life on Earth
    on June 13, 2018 at 2:19 pm

    Research has shown that reactions of alpha-hydroxy acids, similar to the alpha-amino acids that make up modern proteins, form large polymers easily under conditions presumed prevalent on early Earth. These alpha-hydroxy acid polymers may have aided in the formation of living systems on early Earth. […]

  • Pollution hits the fungi that nourish European trees
    on June 6, 2018 at 5:27 pm

    Pollution is changing the fungi that provide mineral nutrients to tree roots, which could explain malnutrition trends in Europe's trees. […]

  • Surprising resurgence of red spruce likely result of cleaner air and warmer winters
    on June 5, 2018 at 4:08 pm

    When scientists found a resurgence of red spruce in northeastern forests, they had a lot of questions. Fifty years ago, red spruce was the equivalent of a canary in the coalmine signaling the effects of acid rain on forests. Researchers have identified two factors behind the tree's surprising recovery: reduced inputs of acid rain and warmer fall, winter and spring temperatures. […]

  • Large igneous provinces contribute to ups and downs in atmospheric carbon dioxide
    on June 5, 2018 at 2:34 pm

    Modelling the location of large igneous provinces for the past 400 million years shows that their eruptions and subsequent weathering modulate global climate. […]

  • Corn with straw mulch builds yield, soil carbon
    on April 25, 2018 at 1:38 pm

    How do you boost soil water content and soil health without irrigating? Best cover it with a layer of straw, a new study concludes. […]

  • Rain or snow? Humidity, location can make all the difference, new map shows
    on March 20, 2018 at 12:43 pm

    Researchers have created a map of the Northern Hemisphere showing how location and humidity can affect precipitation, illustrating wide variability in how and why different areas receive snow or rain. […]

  • Coral reef experiment shows: Acidification from carbon dioxide slows growth
    on March 14, 2018 at 6:50 pm

    Ocean acidification will severely impair coral reef growth before the end of the century if carbon dioxide emissions continue unchecked. The paper represents the first ocean acidification experiment in which seawater was made artificially acidic by the addition of carbon dioxide and then allowed to flow across a natural coral reef community. The acidity of the seawater was increased to reflect end-of-century projections if carbon dioxide from greenhouse gas emissions are not abated. […]

  • Elephant declines imperil Africa's forests
    on March 12, 2018 at 7:05 pm

    Poaching and habitat loss have reduced forest elephant populations in Central Africa by 63 percent since 2001. This poses consequences not only for elephants but also for the region's forests, a new study finds. Without intervention to stop poaching, as much as 96 percent of Central Africa's forests will undergo major changes in tree-species composition and structure as local populations of elephants disappear and surviving populations are crowded into ever-smaller forest remnants. […]

  • Diverse tropical forests grow fast despite widespread phosphorus limitation
    on March 7, 2018 at 8:39 pm

    Ecological theory says that poor soils limit the productivity of tropical forests, but adding nutrients as fertilizer rarely increases tree growth, suggesting that productivity is not limited by nutrients after all. Researchers resolved this apparent contradiction, showing that phosphorus limits the growth of individual tree species but not entire forest communities. Their results have sweeping implications for understanding forest growth and change. […]

  • Rapid pollution increases may be as harmful to the heart as absolute levels
    on February 15, 2018 at 11:03 pm

    Rapid increases in pollution may be as harmful to the heart as sustained high levels, according to new research. The authors urgently call for confirmatory studies as even residents of clean air cities could be at risk. […]

  • Central Valley soil emissions a large source of California's nitrogen oxide pollution
    on January 31, 2018 at 9:03 pm

    A previously unrecognized source of nitrogen oxide is contributing up to about 40 percent of the NOx emissions in California, according to a new study. The study traces the emissions to fertilized soils in the Central Valley region. […]

  • Taking the long view: US scientists affirm value of long term research
    on January 31, 2018 at 4:03 pm

    A new study provides a detailed glimpse into how the US ecological community views the direction of long-term research, its critical role in the advancement of knowledge, and research areas that scientists believe should be prioritized in the future. […]