Two outpost offices of the National Weather Service in Alaska are finally ending what has been a bygone practice for most of the nation for almost two decades: using real human voices in radio forecast broadcasts. Local weather forecasts are a big deal to many people in Alaska because, more than in some other parts of the United States, the forecasts can be a matter of life and death.
More Americans view global warming by what they see outside their windows and not scientific evidence, according to a Univ. of Michigan survey. While a majority of Americans still believe that global warming is occurring, the cold and snowy winter of 2014 created more disbelievers, according to the National Surveys on Energy and Environment.
Researchers report evidence for an oceans worth of water deep beneath the U.S. Though not in the familiar liquid form—the ingredients for water are bound up in rock deep in the Earth’s mantle—the discovery may represent the planet’s largest water reservoir. The presence of liquid water on the surface is what makes our “blue planet” habitable, and scientists have tried to figure out just how much water may be cycling between Earth’s surface.
Years after the 2010 Deepwater Horizon Oil spill, oil continues to wash ashore as oil-soaked “sand patties,” persists in salt marshes abutting the Gulf of Mexico, and questions remain about how much oil has been deposited on the seafloor. Scientists have developed a unique way to fingerprint oil, even after most of it has degraded, and to assess how it changes over time.
A study published by Michigan State Univ. researchers this week concludes that helping farmers around the globe apply more precise amounts of fertilizer nitrogen can combat climate change. The study uses data from around the world to show that emissions of nitrous oxide, a greenhouse gas produced in soil following nitrogen addition, rise faster than previously expected when fertilizer rates exceed crop needs.
Particles of soot floating through the air and comets hurtling through space have at least one thing in common: 0.36. That, reports a research group at NIST, is the measure of how dense they will get under normal conditions, and it’s a value that seems to be constant for similar aggregates across an impressively wide size range from nanometers to tens of meters. NIST hopes the results will aid climate researchers.
PerkinElmer, Inc., has announced the launch of Elm, an innovative air monitoring service providing local air quality analysis for individuals, smart cities and sustainable communities. The Elm service enables the visualization and understanding of relevant real-time air quality detail, providing data that can be immediately accessed, both online and on mobile devices.
Before Houston and its suburbs were built, a dense forest naturally purified the coastal air along a stretch of the Texas Gulf Coast that grew thick with pecan, ash, live oak and hackberry trees. It was the kind of pristine woodland that was mostly wiped out by settlers in their rush to clear land and build communities.
A dash of clay, a dab of fiber from crab shells, and a dollop of DNA: This strange group of materials are actually the ingredients of promising green fire retardants invented by researchers at NIST. Applied to polyurethane foam, the bio-based coatings greatly reduced the flammability of the common furniture padding after it was exposed to an open flame.
A U.S. board's investigation into the 2010 BP oil spill concludes that a last-ditch safety device on the underwater well had multiple failures, wasn't tested properly and still poses a risk for many rigs drilling today. The report issued Thursday by the U.S. Chemical Safety Board zeroes in on what went wrong with the blowout preventer and blames bad management and operations.
This growing season, crop researchers at the Univ. of Illinois are experimenting with the use of drones—unmanned aerial vehicles—on the university’s South Farms. Dennis Bowman, a crop sciences educator with U. of I. Extension, is using two drones to take aerial pictures of crops growing in research plots on the farms.
A team of students in California have created a roof tile coating that, when applied to an average-sized residential roof, breaks down the same amount of smog-causing nitrogen oxides per year as a car driven 11,000 miles. The inexpensive titanium dioxide-based coating removes up to 97% of smog-causing nitrogen oxides.
A porous material invented by the Rice Univ. lab of chemist James Tour sequesters carbon dioxide, a greenhouse gas, at ambient temperature with pressure provided by the wellhead and lets it go once the pressure is released. The material shows promise to replace more costly and energy-intensive processes.
The paleoclimate record for the last ice age tells of a cold Earth whose northern continents were covered by vast ice sheets. Chemical traces from plankton fossils in deep-sea sediments reveal rearranged ocean water masses, as well as extended sea ice coverage off Antarctica. Air bubbles in ice cores show that carbon dioxide in the atmosphere was far below levels seen before the Industrial Revolution.
The U.S. government rolled out a plan Monday to cut carbon dioxide emissions from power plants by 30% by 2030, a centerpiece of President Barack Obama's efforts to reduce the pollution linked to global warming. The rule, expected to be final next year, sets in motion one of the most significant actions on global warming in U.S. history.
An increasing number of cities around the world now include preparations for climate change in their basic urban planning; but only a small portion of them have been able to make such plans part of their economic development priorities, according to a unique global survey of cities. The Urban Climate Change Governance Survey underscores the extent to which city leaders recognize climate change as a major challenge.
Researchers at the Georgia Tech Research Institute are developing a micro gas chromatograph for early detection of diseases in crops. About the size of a 9-V battery, the technology’s portability could give farmers just the tool they need to quickly evaluate the health of their crops and address any possible threats immediately, potentially increasing yield by reducing crop losses.
With a growing number of consumers demanding more earth-friendly practices from the fashion world, scientists are developing new ways to produce textiles that could help meet rising expectations. They report in Industrial & Engineering Chemistry Research one such method that can dramatically reduce the amount of energy it takes to bleach cotton while improving the quality of the popular material.
Commercial buildings could cut their heating and cooling electricity use by an average of 57% with advanced energy-efficiency controls, according to a year-long trial of the controls at malls, grocery stores and other buildings across the country. The study demonstrated higher energy savings than what was predicted in earlier computer simulations by the same researchers.
A new way of measuring sea level using satellite navigation system signals, such as GPS, has been implemented by scientists in Sweden. Sea level and its variation can easily be monitored using existing coastal GPS stations, the scientists have shown, and requires just two antennas that measure signals both directly from the satellites and signals reflected off the sea surface.
A new fuel-cell concept from Michigan State Univ. allows biodiesel plants to eliminate the creation of hazardous wastes while removing their dependence on fossil fuel from their production process. The platform, which uses microbes to glean ethanol from glycerol and has the added benefit of cleaning up the wastewater, should give producers the opportunity to reincorporate the ethanol and the water into the fuel-making process.
A newly-discovered source of oceanic bioavailable iron could have a major impact on our understanding of marine food chains and global warming. A team in the U.K. has discovered that summer meltwaters from ice sheets are rich in iron, which will have important implications on phytoplankton growth. In turn phytoplankton capture carbon, thus buffering the effects of global warming.
Britain is offering 10 million pounds (almost $17 million) to whoever can solve one of humanity's biggest scientific challenges. What’s the challenge? Organizers said Monday the public would vote on which of six challenges the prize should tackle, ranging from reversal of paralysis to making air travel environmentally friendly.
California’s drought will deal a severe blow to Central Valley irrigated agriculture and farm communities this year, and could cost the industry $1.7 billion and cause more than 14,500 workers to lose their jobs, according to preliminary results of a new study by the Univ. of California, Davis Center for Watershed Sciences.
In June, 2010, two months after the Deepwater Horizon oil spill, Regina Lamendella collected samples along a hard-hit beach near Grand Isle, Louisiana. She was part of a team of Lawrence Berkeley National Laboratory researchers that wanted to know how the microbes along the shoreline were responding to the spill.