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Report finds says “negative emissions technologies” need to play a large role in mitigating climate change

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To achieve goals for climate and economic growth, “negative emissions technologies” (NETs) that remove and sequester carbon dioxide from the air will need to play a significant role in mitigating climate change, according to a new report from the National Academies of Sciences, Engineering, and Medicine.

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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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billion tonnes, their highest ever level, as the world economy rebounded strongly from the COVID-19 crisis and relied heavily on coal to power that growth, according to new IEA analysis. Coal accounted for over 40% of the overall growth in global CO 2 emissions in 2021, reaching an all-time high of 15.3 billion tonnes.

Emissions 370
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Perspective: The Role of Offsets in Climate Change Legislation

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This article shows that including offsets in climate change legislation would likely make an emissions program more cost-effective by: (a) providing an incentive for non-regulated sources to generate emission reductions; and (b) expanding emission compliance opportunities for regulated entities. 3) Measurement.

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IEA: governments must act to ensure sufficient supply of critical minerals to meet net-zero goals

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Not only is this a massive increase in absolute terms, but as the costs of technologies fall, mineral inputs will account for an increasingly important part of the value of key components, making their overall costs more vulnerable to potential mineral price swings.

Supplies 248
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MIT/RAND Study Concludes Three Types of Alternative Jet Fuel May Be Available in Commercial Quantities Over the Next Decade

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The focus of the work was on alternative jet fuels that could be available commercially in the next decade using primarily North American resources. Production of commercial quantities of HRJ depends on the availability of appropriate feedstocks at competitive prices. Weiss, Ian A.

MIT 250
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IPCC: GHG emissions accelerating despite mitigation efforts; major institutional and technological change required to keep the heat down

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Decomposition of the decadal change in total global CO 2 emissions from fossil fuel combustion by four driving factors; population, income (GDP) per capita, energy intensity of GDP and carbon intensity of energy. Increased use of coal relative to other energy sources has reversed the long?standing WG III Summary for Policymakers.

Emissions 257
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IEA: carbon intensity of global energy supply has barely changed in last 20 years; “window of opportunity in transport”

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The IEA said that this reflects the continued domination of fossil fuels—particularly coal—in the energy mix and the slow uptake of other, lower-carbon supply technologies. The costs of most clean energy technologies fell more rapidly than anticipated. Coal technologies continue to dominate growth in power generation.

Carbon 265