It is common knowledge that the world's oceans and atmosphere are warming as humans release more and more carbon dioxide into the Earth's atmosphere.

Despite widespread concern about climate change, annual carbon dioxide emissions from burning fossil fuels and manufacturing cement have grown 38 percent since 1992, from 6.1 billion tons of carbon to 8.5 billion tons in 2007.

In a first for Australia, carbon dioxide (CO2) has been captured from power station flue gases in a post-combustion-capture (PCC) pilot plant at Loy Yang Power Station in Victoria’s Latrobe Valley.

It's not just about climate change anymore. Besides loading the atmosphere with heat-trapping greenhouse gases, human emissions of carbon dioxide have also begun to alter the chemistry of the ocean—often called the cradle of life on Earth.

For the past three years, the European Union has been operating the world's largest emissions trading system and the first system to limit and to trade carbon dioxide emissions.

IBM (NYSE: IBM) today announced the Carbon Tradeoff Modeler, a first-of-a-kind tool that enables organizations to analyze and manage the climate impact of their supply chains. The tool allows organizations to understand the outcome of critical tradeoffs to make smarter energy choices and better economic decisions by optimizing on service levels, quality, cost, and carbon dioxide emissions.

CARBON buried in the Earth could ultimately determine the fate of our planet’s atmosphere. So concluded a pioneering meeting last week about the Earth’s long-neglected “deep” carbon cycle.

A large quantity of nitrogen compounds emitted into the atmosphere by humans through the burning of fossil fuels and the use of nitrogen fertilizers enters the oceans and may lead to the removal of some carbon dioxide from the atmosphere, concluded a team of international scientists led by Texas A&M University Distinguished Professor of Oceanography and Atmospheric Sciences Robert Duce.

Of the current global environmental problems, the excessive release of carbon dioxide from the combustion of fossil fuels and the related global warming is one of the most pressing. In an essay in the journal ChemSusChem , Fritz Scholz and Ulrich Hasse from the University of Greifswald introduce a possible approach to a solution: deliberately planted forests bind the CO 2 through photosynthesis and are then removed from the global CO2 cycle by burial.

The potential of no-tillage (NT) soils for increasing the soil organic carbon (SOC) pool must be critically and objectively assessed. Most of the previous studies about SOC accrual in NT soils have primarily focused on the surface layer (<20-cm soil depth), and not for the whole soil profile. The lack of adequate data on the SOC profile is a hindrance to conclusively ascertain the effects of NT farming on SOC sequestration and off-setting CO2 emissions.

Over millions of years carbon dioxide levels in the atmosphere have been moderated by a finely-tuned natural feedback system— a system that human emissions have recently overwhelmed. A joint University of Hawaii / Carnegie Institution study published in the advance online edition of Nature Geoscience links the pre-human stability to connections between carbon dioxide in the atmosphere and the breakdown of minerals in the Earth’s crust.

Levying a price on carbon dioxide released by electric generators could considerably reduce greenhouse gas emissions — even before the deployment of any environmentally friendly technology — according to scientists in Pennsylvania. Their report is scheduled for the May 1 issue of ACS’ Environmental Science & Technology, a semi-monthly journal.