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Articles sur Carbon dioxide (CO2)

Affichage de 261 à 280 de 321 articles

Could carbon capture and storage be the way to clean up coal power stations, such as this one in Australia’s Latrobe Valley? Monash University/Flickr

Carbon capture and storage — reality or still a dream?

To have any chance of avoiding dangerous climate change we’ll have to reduce the carbon emissions from our energy sectors — currently the largest human source of greenhouse gas emissions globally. And…
A new study shows plants may absorb more carbon than we thought. Jason Samfield/Flickr

Plants absorb more CO2 than we thought, but …

Through burning fossil fuels, humans are rapidly driving up levels of carbon dioxide in the atmosphere, which in turn is raising global temperatures. But not all the CO2 released from burning coal, oil…
Carbon emissions from burning fossil fuels and cement-making reached 36 billion tonnes in 2013. Shutterstock

Mapping global carbon emissions

The latest report on global carbon emissions released this week revealed that carbon dioxide emissions will likely reach 40 billion tonnes this year. Growth in emissions continues to match the worst-case…
Phytoplankon: blooming marvellous. Norman Kuring

Saharan dust feeds the ocean and locks away carbon too

The Saharan dust that clogged air and dirtied cars recently may seem like a nuisance, but in fact contains some essential nutrients – if, that is, you’re phytoplankton. The dust and sand blown from Africa…
Is this a sunset, or sunrise, for fracking? danielfoster437

Shale gas: make polluters pay for the social cost of fracking

While the prime minister has shown unequivocal support for exploiting Britain’s shale gas reserves, stating the country should “go all out for shale gas”, more cautious voices point to possible effects…
Steel: red hot and dirty. John Giles/PA

Using iron to clean steelmaking, a very dirty business

Iron and steel are components of an almost limitless number of infrastructure and consumer goods. From forks to tanks, syringes to satellites, cars to computers, from buildings to the power stations that…

CO2 levels reach record high

Atmospheric CO2 concentrations reached record levels last year according to the UN World Meteorological Organisation. The…

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