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News about environmental issues. Latest "Green" and sustainable technologies news.

Pharmaceutical residues in fresh water pose a growing environmental risk

Over the past 20 years, concentrations of pharmaceuticals have increased in freshwater sources all over the world, as research by environmental experts has revealed. Levels of the antibiotic ciprofloxacin have reached the point of potentially causing damaging ecological effects.

Indoor exposure to air pollution studied

In an Indoor Air study conducted in a suburb of the city of Kuopio, Finland, relatively short-lasting wood and candle burning of a few hours increased residents' daily exposure to potentially hazardous particulate air pollution. Associations between indoor air pollutants and building ventilation or cooking were also observed.

How coral bleaching threatens Caribbean communities

A new study uses environmental, socioeconomic and management data from 30 Caribbean islands to identify which communities may be most at risk from the social and ecological effects of coral bleaching, which occurs when warm water causes coral polyps to expel algae living in their tissue. The analysis shows that independent island nations, such as Cuba and Jamaica, may be less vulnerable to coral bleaching than island territories like Saint Barthélemy.

Squid could provide an eco-friendly alternative to plastics

The remarkable properties of a recently-discovered squid protein could revolutionize materials in a way that would be unattainable with conventional plastic. Originating in the ringed teeth of a squid's predatory arms, this protein can be processed into fibers and films with applications ranging from health-monitoring 'smart' clothes to self-healing recyclable fabrics that reduce microplastic pollution. Materials made from this protein are eco-friendly and biodegradable, with sustainable large-scale production achieved using laboratory culture methods.

Innovative nanocoating technology harnesses sunlight to degrade microplastics

Low density polyethylene film (LDPE) microplastic fragments, successfully degraded in water using visible-light-excited heterogeneous ZnO photocatalysts.

A volcanic binge and its frosty hangover

A major volcanic event could have triggered one of the largest glaciations in Earth's history -- the Gaskiers glaciation, which turned the Earth into a giant snowball approximately 580 million years ago. Researchers have discovered remnants of such a large igneous province that resulted from vast lava flows.

Carbon taxes could create new winners and losers among countries, research says

A global carbon tax would create new sets of economic winners and losers, with some countries holding a distinct competitive advantage over others, according to new research.

Prenatal forest fire exposure stunts children's growth

Forest fires are more harmful than previously imagined, causing stunted growth in children who were exposed to smoke while in the womb, according to new research.

A hidden source of air pollution? Your daily household tasks

Cooking, cleaning and other routine household activities generate significant levels of volatile and particulate chemicals inside the average home, leading to indoor air quality levels on par with a polluted major city.

Tiny fibers create unseen plastic pollution

While the polyester leisure suit was a 1970s mistake, polyester and other synthetic fibers like nylon are still around and are a major contributor to the microplastics load in the environment, according to a materials scientist, who suggests switching to biosynthetic fibers to solve this problem.

Hope for fighting disease known as Ebola of frogs

Despite widespread infection, some frog populations are surviving a deadly disease that is the equivalent of humankind's Ebola virus. The reason -- genetic diversity.

Upcycling plastic bags into battery parts

Plastic bag pollution has become a huge environmental problem, prompting some cities and countries to heavily tax or ban the sacks. But what if used plastic bags could be made into higher-value products? Now, researchers have reported a new method to convert plastic bags into carbon chips that could be used as anodes for lithium-ion batteries.

Antarctic ice shelves buckle under weight of meltwater lakes

The filling and draining of meltwater lakes has been found to cause a floating Antarctic ice shelf to flex, potentially threatening its stability.

Connection between home energy efficiency and respiratory health in low-income homes

A new study finds people living in drafty homes in low-income, urban communities are at a higher risk of respiratory health issues.

Many Arctic lakes give off less carbon than expected

New research suggests many lakes in the Arctic pose little threat to global carbon levels, at least for now.


Environmental News - NaturesList.org