Particles pull last drops of oil from well water
Wed, 15 Aug 2018 17:11:06 EDT
Engineers develop magnetic nanoparticles that separate the last droplets of oil from produced water at wells.
When viruses infect phytoplankton, it can change the clouds
Wed, 15 Aug 2018 13:05:36 EDT
Microscopic plant-like organisms called phytoplankton support the diversity of life in the ocean. Scientists now report that one species, Emiliania huxleyi, and a virus closely associated with it, might be responsible for changes in cloud properties as well. When infected, E. huxleyi releases its chalky shell into the air, where it acts as an aerosol reflecting sunlight and even affecting cloud creation and movement.
Natural refrigerant replacements could reduce energy costs and conserve the environment
Tue, 14 Aug 2018 13:41:59 EDT
The 1987 Montreal Protocol and the 1997 Kyoto Protocol called for countries around the world to phase out substances that deplete the ozone layer, but many HVAC systems still use synthetic refrigerants that violate those international agreements and inflict environmental damage. Recently, researchers investigated how natural refrigerants could be used in geothermal heat pumps to reduce energy consumption and operating costs.
Europe needs coastal adaptation measures to avoid catastrophic flooding by the end of the century
Mon, 13 Aug 2018 12:52:30 EDT
Coastal floods could impact up to 3.65 million people every year in Europe by 2100, according to a new study.
Algorithm provides early warning system for tracking groundwater contamination
Mon, 13 Aug 2018 12:52:27 EDT
Scientists have developed a low-cost method for real-time monitoring of pollutants using commonly available sensors.
Scientists trace atmospheric rise in CO2 during deglaciation to deep Pacific Ocean
Mon, 13 Aug 2018 11:33:38 EDT
How carbon made it out of the ocean and into the atmosphere has remained one of the most important mysteries of science. A new study, provides some of the most compelling evidence for how it happened -- a 'flushing' of the deep Pacific Ocean caused by the acceleration of water circulation patterns that begin around Antarctica.
Converting carbon dioxide into methane or ethane selectively
Mon, 13 Aug 2018 10:02:46 EDT
Researchers have developed high-efficiency photocatalysts that convert carbon dioxide into methane or ethane with graphene-covered reduced titanium dioxide. The finding is expected to be utilized in the carbon dioxide reduction and recycling industries.
Does rain follow the plow?
Fri, 10 Aug 2018 09:15:56 EDT
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.
North American diets require more land than we have, study finds
Thu, 09 Aug 2018 11:24:07 EDT
Researchers found that if the global population followed the United States Department of Agriculture's dietary guidelines, there would not be enough land to provide the food required.
Environmental regulations drove steep declines in US factory pollution
Thu, 09 Aug 2018 09:35:15 EDT
A new study by economists shows that between 1990 and 2008, air pollution levels plummeted. The evidence shows that environmental regulation and the associated cleanup of production processes played important roles in those steep declines. Manufacturers are producing the same types of goods, but they've taken significant steps to clean up their production processes, the authors say.
The underestimated cooling effect on the planet from historic fires
Thu, 09 Aug 2018 09:34:37 EDT
Historic levels of particles in the atmosphere released from pre-industrial era fires, and their cooling effect on the planet, may have been significantly underestimated according to a new study.
Effective method to control algae growth on Hawaiian coral reefs
Wed, 08 Aug 2018 19:36:38 EDT
Researchers have found a management approach that combining manual removal and outplanting native urchin was effective at reducing invasive, reef smothering macroalgae by 85 percent on a coral reef off O'ahu, Hawai'i.
For the first time, scientists are putting extinct mammals on the map
Wed, 08 Aug 2018 13:42:26 EDT
Researchers have produced the most comprehensive family tree and atlas of mammals to date, connecting all living and recently extinct mammal species (nearly 6,000 in total) and overturning many previous ideas about global patterns of biodiversity. The atlas shows where species occur today as well as where they would occur, if they had not been driven away or extinct.
Where do crows go in winter?
Wed, 08 Aug 2018 09:39:01 EDT
'Partial migration' -- where some individuals within a population migrate and some don't -- is common among birds, but scientists know very little about how it actually works. A new study tracks where American Crows go during the winter and shows that while individuals are consistent in whether they migrate or stay put, partial migration might give them enough flexibility to adapt to changing environmental conditions.
Good news for fishermen: Browning impacts fish less than expected
Wed, 08 Aug 2018 09:37:51 EDT
Water color is getting darker in lakes across the planet. This phenomenon, known as 'browning,' was anticipated to cause widespread declines in fish populations. A new study finds that the number of fish populations impacted by browning is smaller than previously believed.