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Study finds global carbon emissions reached 10 billion tonnes in 2010

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Global carbon dioxide emissions from burning fossil fuels have increased by 49% in the last two decades, according to the latest figures from the Global Carbon Project. Total emissions—including fossil fuel combustion, cement production, deforestation and other land use emissions—reached 10 billion tonnes of carbon (36.7

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Study Finds Stratospheric Water Vapor Is An Important Driver of Decadal Global Surface Climate Change

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Decadal warming rates arising from (i) greenhouse gases and aerosols alone (black); (ii) that obtained including the stratospheric water decline after 2000 (red); and (iii) including both the stratospheric water vapor decline after 2000 and the increase in the 1980s and 1990s (cyan). Stratospheric water vapor and radiative processes.

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PCAST suggests 6 key components for climate change strategy to President Obama; adaptation and mitigation

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The President’s Council of Advisors on Science and Technology (PCAST) released a letter to President Obama describing six key components the advisory group believes should be central to the Administration’s strategy for addressing climate change. Improving coordination and support for research efforts on climate change preparedness.

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Copenhagen Diagnosis Released, Detailing Accelerating Indicators of Climate Change In Last Three Years

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A team of 26 climate scientists from Australia, Austria, Canada, France, Germany, Switzerland, the United Kingdom, and the United States have published the “Copenhagen Diagnosis”, an interim synthesis report on developments in climate change science from mid-2006 to the present day.

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Ocean Salinities Show an Intensified Water Cycle; Large Salinity Changes Will Eventually Influence Ocean Circulation

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A new study co-authored by CSIRO (Australia) scientists Paul Durack and Dr. Susan Wijffels finds evidence that the world’s water cycle has already intensified. The stronger water cycle means arid regions have become drier and high rainfall regions wetter as atmospheric temperature increases. Source: Durack and Wijffels. ºC since 1950.

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California ARB and NOAA Collaborating in $20M Research on Interaction of Air Pollution and Climate Change; One Atmosphere Approach

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Schematic diagram of the trade-offs between the implications for regional air quality and global climate change of new policies for management of the atmosphere. 2010 CalNex Science and Implementation Plan. The gray ellipse approximately represents the direction of current trends in the US. Source: NOAA. Click to enlarge.

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Researchers demonstrate electrochemical synthesis of ammonia from air and water under mild conditions

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In addition to providing a less carbon-intensive pathway for ammonia, their process could also reduce the pressure on renewable energy storage, they note. Globally 131 million tons of ammonia were produced in 2010. To the best of our knowledge, there is no report on artificial synthesis of ammonia direct from air and water.

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