The air along coastlines is being heavily polluted by hazardous levels of nanoparticles from sea traffic, a new study has found.
Almost half of the measured particles stem from sea traffic emissions, while the rest is deemed to be mainly from cars but also biomass combustion, industries and natural particles from the sea.
"This is the first time an attempt has been made to estimate the proportion of nanoparticles stemming from sea traffic. The different types of nanoparticles have previously not been distinguished, but this new method makes it possible", says Adam Kristensson, researcher in Aerosol Technology at the Lund University Faculty of Engineering in Sweden.
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Los ataques ParÃs, las negociaciones de clima y la guerra contra el terror
¿Es una coincidencia que el atentado terrorista de París se haya cometido semanas antes del COP21, la mayor conferencia sobre el clima desde el año 2009? Tal vez, escribe Oliver Tickell. Pero el fracaso en alcanzar un acuerdo climático fuerte parece ahora más probable. Y eso es un resultado que le gustaría al Estado Islámico (EI), que gana $ 500 millones al año por la venta de petróleo, junto con otros productores de petróleo.
EVs vs. Gasoline-Powered Cars - Which has the cleaner lifecycle?
It’s the trick question that has left many of us stumped: from the earliest stages of manufacture to the years driving on the road until they are sent to the junkyard, are conventional automobiles or electric cars cleaner for the environment? While acknowledging that electric vehicles (EVs) emit no emissions when running on our streets and highways, many have assumed that those pesky rare earth metals in their massive batteries and the emissions associated with producing the power canceled out any environmental benefits that their drivers enjoyed. According to the Union of Concerned Scientists (UCS), a two-year study has provided the answer.
US Forest Service proposes coal mining expansion in Colorado
National and local conservation groups today condemned a decision by the U.S. Forest Service to continue pressing to open national forest roadless areas in Colorado to coal mining.
In a notice filed today, the Forest Service announced it would move forward by issuing a draft environmental impact statement on the proposal to pave the way for mining. The proposal would reopen a loophole in the “roadless rule” for national forests in Colorado to enable Arch Coal — the nation’s second largest coal company — to scrape roads and well pads on nearly 20,000 acres of otherwise-protected, publicly owned national forest and wildlife habitat in Colorado’s North Fork Valley.
New study casts doubt on how much sea levels may rise from the collapse of the Antarctic ice sheet
A new study by scientists in the UK and France has found that Antarctic ice sheet collapse will have serious consequences for sea level rise over the next two hundred years, though not as much as some have suggested.
This study, published this week in the journal Nature, uses an ice-sheet model to predict the consequences of unstable retreat of the ice, which recent studies suggest has begun in West Antarctica.
An international team of researchers, including a scientist from British Antarctic Survey (BAS), predict that the contribution is most likely to be 10 cm of sea-level rise this century under a mid to high climate scenario, but is extremely unlikely to be higher than 30 cm. When combined with other contributions, that’s a significant challenge for adapting to future sea level rise. But it’s also far lower than some previous estimates, which were as high as one metre from Antarctica alone.
Food industry focuses on sustainable sourcing to mitigate climate change
Faced with a raw materials scarcity due to climate change, food and drink giants have turned to a sustainable management in order to protect the environment and ensure their future viability. The global population is expected to rise from 7.3 billion today to 9.7 billion in 2050, according to UN projections. As a consequence, according to a survey published in July by FoodDrinkEurope, this will require a 60% increase in food supplies globally, as well as a 30% rise in global demand for water for agriculture.