Articles on Carbon dioxide

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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…
Solid plastic made from gas. Novomer

Explainer: what is carbon capture and utilisation?

Carbon and carbon dioxide are found all around us. All living things contain carbon - it’s one of the essential building blocks of life and is fundamental to many chemical processes. Carbon dioxide (CO2…

Mapping methane across America

Researchers in the US have done the first ever whole-country study of methane emissions. In some cases they found higher…
Why does the atmosphere over Tasmania record lower levels of CO2 than that over Hawaii? Ula Majewski

How is atmospheric CO2 measured in the Southern Hemisphere?

Last week the greenhouse gas monitoring site at Mauna Loa in Hawaii recorded daily levels of atmospheric carbon dioxide that approached the 400 parts per million molar (ppm) benchmark. Annual mean Southern…
The extreme rate at which greenhouse gases and temperatures are rising is leading to extensive fires. AAP Image/Kim Foale

As carbon dioxide hits a new high, there’s still no Planet B

On May 9, 2013, the National Oceanic and Atmospheric Administration in the US recorded CO2 levels in the atmosphere at of 400 parts per million. This signifies a return to the atmospheric conditions similar…
Measurements in the skies over Hawaii show we’ve reached a carbon dioxide milestone, but geo-engineering won’t get us off the hook. J.S. Nawati

Carbon dioxide hits a new high, but geo-engineering won’t help

This week, carbon dioxide concentration in the atmosphere finally crossed the 400 parts-per-million mark. The last time that happened was 3-5 million years ago during the Pliocene epoch, several million…

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