Report: Lots of carbon dioxide equivalents from aquatic environments

According to a study carried out by two master’s students at Linköping University, large amounts of carbon dioxide equivalents taken up by plants on land are returned to the atmosphere from aquatic environments.

Report: Arctic inland waters emit large amounts of carbon

Geoscientist Erik Lundin shows in his thesis that streams and lakes of Northern Sweden are hotspots for emissions of carbon dioxide and methane into the atmosphere.

Turning unwanted carbon dioxide into electricity

Researchers are developing a new kind of geothermal power plant that will lock away unwanted carbon dioxide (CO2) underground – and use it as a tool to boost electric power generation by at least 10 times compared to existing geothermal energy approaches.

Claim: Even if emissions stop, carbon dioxide could warm Earth for centuries

Even if carbon dioxide emissions came to a sudden halt, the carbon dioxide already in Earth's atmosphere could continue to warm our planet for hundreds of years, according to Princeton University-led research published in the journal Nature Climate Change. The study suggests that it might take a lot less carbon than previously thought to reach the global temperature scientists deem unsafe.

Tropical ecosystems boost carbon dioxide as temperatures rise

NASA scientists and an international team of researchers have found tropical ecosystems can generate significant carbon dioxide when temperatures rise, unlike ecosystems in other parts of the world.

New catalyst could cut cost of making hydrogen fuel

A discovery at the University of Wisconsin-Madison may represent a significant advance in the quest to create a "hydrogen economy" that would use this abundant element to store and transfer energy.

Elevated carbon dioxide levels are turning arid regions greener

Scientists have long suspected that a flourishing of green foliage around the globe, observed since the early 1980s in satellite data, springs at least in part from the increasing concentration of carbon dioxide in Earth’s atmosphere.

Claim: Global warming caused by CFCs, not carbon dioxide

Chlorofluorocarbons (CFCs) are to blame for global warming since the 1970s and not carbon dioxide, claims new research from the University of Waterloo recently published in the International Journal of Modern Physics B.

Bacteria exploits hydrogen, carbon dioxide to produce electricity

Researchers have engineered a strain of electricity-producing bacteria that can grow using hydrogen gas as its sole electron donor and carbon dioxide as its sole source of carbon.

'Carbon sponge' soaks up coal emissions

Emissions from coal power stations could be cut drastically by a new, energy-efficient material that adsorbs large amounts of carbon dioxide, then releases it when exposed to sunlight.

Volcanoes trigger greenhouse effect

Earth's repeated flip-flopping between greenhouse and icehouse states over the past 500 million years may have been caused by volcanoes at particular spots where enormous amounts of carbon dioxide are released into the atmosphere.

Sea urchin discovery could help capture CO2

The discovery that sea urchins use nickel particles to remove carbon dioxide from the sea could be the key to capturing tonnes of CO2 from the atmosphere.

The thawing "dry ice" of Mars

An international team of researchers studying data beamed back by NASA's Mars Reconnaissance Orbiter have observed seasonal changes on far-northern sand dunes on the Red Planet caused by warming of a winter blanket of frozen carbon dioxide.

Warming soil releases more CO2

As soil warms from climate change, it releases additional carbon into the atmosphere – but that effect diminishes over the long term, say scientists.

CO2 emissions reach record high

Many governments are still failing miserably to keep global carbon emissions low enough to limit global warming to the two-degree-Centigrade international target.

Melting permafrost is ticking time bomb, says UN

The permafrost covering almost a quarter of the northern hemisphere contains twice as much carbon as is currently in the atmosphere, and could significantly amplify global warming should thawing accelerate as expected.

Ocean acidification is already dissolving shells

The first hard evidence has emerged that the shells of marine snails in the seas around Antarctica are being dissolved by ocean acidification.

CO2 levels in our atmosphere reach record high

Concentrations of greenhouse gases in our atmosphere, driven by man-made carbon emissions, reached a record high in 2011, according to the World Meteorological Organisation (WMO).  

CO2 emissions could mean more dangerous space junk

Rising levels of carbon dioxide in the atmosphere are leaking out to the edge of space and interfering with satellites, new research shows.

Molecular sieve pulls CO2 from the air

Scientists at the University of Melbourne have developed a new way of capturing carbon dioxide that should reduce the cost of separating and storing the gas.