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.

  • 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. […]

  • Tiny particles have outsize impact on storm clouds, precipitation
    on January 25, 2018 at 7:09 pm

    Tiny particles fuel powerful storms and influence weather much more than has been appreciated, according to a new study. While scientists have known that aerosols may play an important role in shaping weather and climate, the new study shows that the smallest of particles have an outsize effect. The tiny pollutants -- long considered too small to have much impact on droplet formation -- are, in effect, diminutive downpour-makers. […]

  • Climate engineering, once started, would have severe impacts if stopped
    on January 22, 2018 at 8:07 pm

    Facing a climate crisis, we may someday spray sulfur dioxide into the upper atmosphere to form a cloud that cools the Earth, but suddenly stopping the spraying would have a severe global impact on animals and plants, according to the first study on the potential biological impacts of geoengineering, or climate intervention. […]

  • Michigan's sugar maples will struggle in a warmer, drier future despite help from nitrogen pollution
    on January 17, 2018 at 3:41 pm

    Though Michigan's sugar maples benefit from the growth-promoting effects of nitrogen compounds in the environment, those gains will not fully offset the added stresses of growing under a drier climate in the future, according to a new study. […]

  • High performance CNT catalyst relating to its electroconductivity
    on January 16, 2018 at 2:56 pm

    Biofuels were obtained from Jatropha Oil using carbon nanotube (CNT) catalyst, which showed efficient cracking activity. The performance was activated by the high stability, metal sites, acid sites, electroconductivity, and coking tolerance of CNT. Two cracking circulations were found in the hydroprocessing. Meanwhile, the sulphur-free process was eco-friendly. […]

  • Yeast may be the solution to toxic waste clean-up
    on January 8, 2018 at 2:37 pm

    About 46,000 nuclear weapons were produced during the Cold War era, leading to tremendous volumes of acidic radioactive liquid waste seeping into the environment. A new study suggests yeast as a potentially safer and more cost effective way to help clean up these radioactive waste sites. […]

  • Chemists discover plausible recipe for early life on Earth
    on January 8, 2018 at 2:01 pm

    Chemists find key chemical reactions that support life today could have been carried out with ingredients likely present on the planet four billion years ago. […]

  • Cleaner air, longer lives
    on December 26, 2017 at 3:50 pm

    A new study shows that the Clean Air Act is likely responsible for dramatic decline in atmospheric organic aerosol in the U.S. […]

  • Freezing trees, finding answers
    on December 6, 2017 at 2:07 pm

    Ice storms can wreak havoc on communities. Frozen limbs, dragged down by the weight of the ice, can snap off and fall on cars, homes, and power lines. But scientists aren't sure how ice storms affect long-term forest health. Researchers are changing that. […]

  • Diesel vehicles in oil sands operations contribute to regional pollution
    on December 6, 2017 at 2:06 pm

    Wildfires, cigarette smoking and vehicles all emit a potentially harmful compound called isocyanic acid. The substance has been linked to several health conditions, including heart disease and cataracts. Scientists investigating sources of the compound have now identified off-road diesel vehicles in oil sands production in Alberta, Canada, as a major contributor to regional levels of the pollutant. […]

  • Raindrops splash pathogens onto crops
    on November 20, 2017 at 2:00 pm

    Pathogens, such as bacteria, viruses or fungi, cause harmful plant disease and often lead to the destruction of agricultural fields. With many possible dispersal methods, it can often be difficult to assess the damage of a pathogen’s impact before it’s too late. […]

  • Secrets of succulents' water-wise ways revealed
    on November 16, 2017 at 6:27 pm

    Plant scientists have revealed new insights into the mechanisms that allow certain plants to conserve water and tolerate drought. The research could be used to help produce new crops that can thrive in previously inhospitable, hot and dry regions across the world. […]

  • China's sulfur dioxide emissions fell significantly while India's grew over last decade
    on November 9, 2017 at 2:32 pm

    Sulfur dioxide is an air pollutant that causes acid rain, haze and many health-related problems. It is produced predominantly when coal is burned to generate electricity. Although China and India remain the world's largest consumers of coal, a new study found that China's sulfur dioxide emissions fell by 75 percent since 2007, while India's emissions increased by 50 percent. […]

  • Late Triassic terrestrial ecosystem changes
    on October 26, 2017 at 5:53 pm

    The Norian Chinle Formation in the Southwestern United States provides a snapshot into an ancient terrestrial ecosystem with its famous petrified tree trunks and various plant and vertebrate remains. The fossil plant assemblages, including spores and pollen grains, provide useful information on past vegetation and the response of the vegetation to climate changes. […]