A reconstruction of changes in ocean oxygenation throughout the last glacial cycle shows that respired carbon was removed from the deep Southern Ocean during deglaciation and Antarctic warm events, consistent with a prominent role of reduced iron fertilization and enhanced ocean ventilation, modifying atmospheric carbon dioxide concentrations over the past 80,000 years.

The viability and environmental risks of removing carbon dioxide from the air must be assessed if we are to achieve the Paris goals, writes Phil Williamson.

Britain will struggle to meet its goals for emission reductions after it shelved a billion-pound scheme to help commercialize carbon capture and storage (CCS) technology last year, lawmakers said o

Carbon dioxide (CO2) has been used in commercial manner for decades to increase recovery from oil fields in a process called "CO2-enhanced oil recovery" or CO2-EOR. Harnessing this practice to qualify as permanent storage of CO2 is possible, but requires a major paradigm shift from conventional EOR to "EOR+", including additional activities.

Sustainable transportation biofuels may require considerable changes in land use to meet mandated targets. Understanding the possible impact of different policies on land use and greenhouse gas emissions has typically proceeded by exploring either ecosystem or economic modelling. Here we integrate such models to assess the potential for the US Renewable Fuel Standard to reduce greenhouse gas emissions from the transportation sector through the use of cellulosic biofuels.

Carbon storage is widely acknowledged as one of the most valuable forest ecosystem services. Deforestation, logging, fragmentation, fire, and climate change have significant effects on tropical carbon stocks; however, an elusive and yet undetected decrease in carbon storage may be due to defaunation of large seed dispersers. Many large tropical trees with sizeable contributions to carbon stock rely on large vertebrates for seed dispersal and regeneration, however many of these frugivores are threatened by hunting, illegal trade, and habitat loss.

In the past few decades, China has experienced rapid growth in coal power, leading to the country’s increased CO2 emissions, which reached 8.25 billion tons in 2012 (IEA).

This report presents the Committee’s advice on the fifth carbon budget, covering the period 2028-32, as required under Section 34 of the Climate Change Act 2008. The Committee recommends that the fifth carbon budget is set at 1,765 MtCO2e, including emissions from international shipping, over the period 2028-2032.

The Summary for Policymakers (SPM) identifies good practice policies, initiatives and actions that could be scaled up and replicated by Parties to realize significant mitigation potential in the pre-2020 period.

Britain aims to close its coal-fired power plants by 2025 under plans announced on Wednesday, becoming the first major economy to put a date on shutting coal plants to curb carbon emissions.