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CICERO-led study finds global warming effect of leaked hydrogen almost 12x stronger than CO2

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A study led by Norwegian climate center CICERO has found that the global warming effect of leaked hydrogen is almost 12 times stronger than that of CO 2. Rather, it is the leaking of hydrogen from production, transportation and usage that adds to global warming. A global warming potential of 11.6 Sand et al. Skeie, R.B.,

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Study: 2/3 of aviation climate impact due to emissions other than CO2

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It makes an important contribution to the scientific understanding we have of the role of aviation for climate change—an understanding decision-makers and politicians may need on the way to achieving the goals of the Paris Agreement. This new study is based on a thorough review of a decade of research on aviation emissions.

Climate 448
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Study finds limiting warming to 2 °C would require at least a $200/t carbon tax globally

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Some will suffer greatly from climate change, while others may even benefit. These heterogeneous effects mean that different countries will have differing incentives to abide by the Paris Agreement, which aims to limit global warming below 2 °C relative to pre-Industrial levels.

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Black carbon is a much larger cause of climate change than previously assessed; about twice previous estimates, and 2/3 the effect of CO2

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the distribution of black carbon in the atmosphere and determine its role in the climate system. Black carbon (BC) is the second largest man-made contributor to global warming and its influence on climate has been greatly underestimated, according to the first quantitative and comprehensive analysis of this pollutant’s climate impact.

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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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Study: Fossil fuel CO2 emissions reached max daily decline of 17% in April

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A preliminary analysis of global data has found that carbon dioxide emissions from fossil fuel sources reached a maximum daily decline of 17% in April as a result of drastic decline in energy demand that have occurred during the COVID-19 pandemic. Percentage change in global daily fossil CO 2 emissions, Jan-May 2020. Jones, M.W.

Emissions 355
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IEA: global CO2 emissions rebounded to their highest level in history in 2021; largely driven by China

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Global energy-related carbon dioxide emissions rose by 6% in 2021 to 36.3 The rebound of global CO 2 emissions above pre-pandemic levels has largely been driven by China, where they increased by 750 million tonnes between 2019 and 2021. billion tonnes, accounting for 33% of the global total. billion tonnes. billion tonnes.

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