Nanofur for oil spill cleanup
August 23, 2016 10:51 AM - Karlsruher Institut Für Technologie (KIT) via EurekAlert!
Some water ferns can absorb large volumes of oil within a short time, because their leaves are strongly water-repellent and, at the same time, highly oil-absorbing. Researchers of KIT, together with colleagues of Bonn University, have found that the oil-binding capacity of the water plant results from the hairy microstructure of its leaves. It is now used as a model to further develop the new Nanofur material for the environmentally friendly cleanup of oil spills. (DOI: 10.1088/1748-3190/11/5/056003)
Damaged pipelines, oil tanker disasters, and accidents on oil drilling and production platforms may result in pollutions of water with crude or mineral oil. Conventional methods to clean up the oil spill are associated with specific drawbacks.
NASA Monitors the 'New Normal' of Sea Ice
August 23, 2016 07:33 AM - Maria-José Viñas and Kate Ramsauer, NASA
This year’s melt season in the Arctic Ocean and surrounding seas started with a bang, with a record low maximum extent in March and relatively rapid ice loss through May. The melt slowed down in June, however, making it highly unlikely that this year’s summertime sea ice minimum extent will set a new record.
Study measures methane release from Arctic permafrost
August 22, 2016 11:02 AM - University of Alaska Fairbanks via EurekAlert!
A University of Alaska Fairbanks-led research project has provided the first modern evidence of a landscape-level permafrost carbon feedback, in which thawing permafrost releases ancient carbon as climate-warming greenhouse gases.
The study was published today in the journal Nature Geoscience.
The project, led by UAF researcher Katey Walter Anthony, studied lakes in Alaska, Canada, Sweden and Siberia where permafrost thaw surrounding lakes led to lake shoreline expansion during the past 60 years. Using historical aerial photo analysis, soil and methane sampling, and radiocarbon dating, the project quantified for the first time the strength of the present-day permafrost carbon feedback to climate warming. Although a large permafrost carbon emission is expected to occur imminently, the results of this study show nearly no sign that it has begun.
Europe's oldest known living inhabitant
August 19, 2016 01:46 PM - Stockholm University via EurekAlert!
A Bosnian pine (Pinus heldreichii) growing in the highlands of northern Greece has been dendrocronologically dated to be more than 1075 years old. This makes it currently the oldest known living tree in Europe. The millenium old pine was discovered by scientists from Stockholm University (Sweden), the University of Mainz (Germany) and the University of Arizona (USA).
NASA spots strong convection in strengthening Tropical Storm Kay
August 19, 2016 11:53 AM - NASA/GODDARD Space Flight Center via EurekAlert!
NASA's Aqua satellite passed over tropical cyclone Kay as it was designated a depression in the Eastern Pacific and identified areas of strong convection. That strong uplift of air continued to generate more powerful storms in the system and on Aug. 19 it strengthened into a tropical storm.
The Atmospheric Infrared Sounder or AIRS instrument that flies aboard NASA's Aqua satellite analyzed Kay as it was classified as a depression on Aug. 18 at 4:53 p.m. EDT (2053 UTC).
Cloth masks offer poor protection against air pollution
August 19, 2016 11:12 AM - University of Massachusetts at Amherst via EurekAlert!
Results of a new study by environmental health scientists at the University of Massachusetts Amherst suggest that inexpensive cloth masks worn by people who hope to reduce their exposure to air pollution vary widely in effectiveness and could be giving users a false sense of security, especially in highly polluted areas.
Researchers Richard Peltier, Kabindra Shakya and colleagues believe theirs is the first study to rigorously test disposable surgical masks and washable cloth masks, which are widely used in Asia and Southeast Asia for personal protection against airborne particulate matter. Their study shows that "wearing cloth masks reduced the exposure to some extent," but "the most commonly used cloth mask products perform poorly when compared to alternative options available on the market."
Pacific sea level predicts global temperature changes
August 18, 2016 05:14 PM - University of Arizona via EurekAlert!
The amount of sea level rise in the Pacific Ocean can be used to estimate future global surface temperatures, according to a new report led by University of Arizona geoscientists.
Based on the Pacific Ocean's sea level in 2015, the team estimates by the end of 2016 the world's average surface temperature will increase up to 0.5 F (0.28 C) more than in 2014.
In 2015 alone, the average global surface temperature increased by 0.32 F (0.18 C).
Climate Change Is Altering Our National Parks Forever
August 18, 2016 03:23 PM - Julie M. Rodriguez, Care2
If you’ve ever taken a camping trip, hiked up a forested mountain trail or simply gone bird watching in an American national park, I have bad news: climate change is increasingly putting our nation’s wilderness in danger. And with July 2016 officially declared the hottest month on the planet since recordkeeping began, matters are only poised to get worse.
Rising global temperatures and changing weather patterns are already having wide-reaching effects on these wild places. Nowhere is this more apparent than in areas that used to be thick with ice and snow.
Blue Cut Fire in California spreads quickly
August 18, 2016 01:43 PM - NASA/GODDARD Space Flight Center via EurekAlert!
The Blue Cut Fire, just outside of Los Angeles, is a quickly growing fire that is currently an imminent threat to public safety, rail traffic and structures in the Cajon Pass, Lytle Creek, Wrightwood, Oak Hills, and surrounding areas. An estimated 34,500 homes and 82,640 people are being affected by the evacuation warnings that have been issued.
Researchers discover a special power in wheat
August 17, 2016 05:15 PM - University of Queensland via EurekAlert!
A new photosynthesis discovery at The University of Queensland may help breed faster-growing wheat crops that are better adapted to hotter, drier climates.
A research team led by Queensland Alliance for Agriculture and Food Innovation researcher Professor Robert Henry has today published a paper in Scientific Reports, showing that photosynthesis occurs in wheat seeds as well as in plant leaves.
"This discovery turns half a century of plant biology on its head," Professor Henry said.
"Wheat covers more of the earth than any other crop, so the ramifications of this discovery could be huge. It may lead to better, faster-growing, better-yielding wheat crops in geographical areas where wheat currently cannot be grown."