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IEA: global carbon dioxide emissions have rebounded strongly

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The Covid-19 crisis in 2020 triggered the largest annual drop in global energy-related carbon dioxide emissions since the Second World War, according to IEA data, but the overall decline of about 6% masks wide variations depending on the region and the time of year. Emissions in the United States fell by 10% in 2020.

Emissions 433
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Study finds global emissions of several banned ozone-destroying CFCs are increasing

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But because they’re potent greenhouse gases, they still affect the climate. That’s equivalent to about one percent of the total greenhouse gas emissions in the United States. Although the team found rising global emissions, they weren’t able to identify particular locations. —Dr Western Resources Western, L.M.,

Ozone 353
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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.

Emissions 370
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BNEF: global investment in low-carbon energy transition hit $755B in 2021; up 27% from 2020; electrified transport grew the fastest

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In 2021, global investment in the low-carbon energy transition totaled $755 billion, up 27% from $595 billion in 2020 and just $264 billion in 2011, according to Energy Transition Investment Trends 2022, a new report published by research firm BloombergNEF (BNEF). degrees of global warming.

Carbon 418
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UGA study finds black carbon aerosols from GDI engines will worsen public health, climate; need for GPFs

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A strong absorber of solar radiation, black carbon exhibits significant climate warming properties. On the other hand, the reduction in CO 2 emissions associated with the enhanced fuel economy of GDI vehicles would yield a globally uniform negative radiative effect, estimated to be ?0.013 W/m 2 over urban regions. —Rawad Saleh.

Climate 348
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NREL researchers use adversarial training to super-resolve climate data; up to 50X higher resolution data

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Researchers at the US Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL) have developed a novel machine learning approach quickly to enhance the resolution of wind velocity data by 50 times and solar irradiance data by 25 times—an enhancement that had yet to be achieved with climate data. —Stengel et al.

Climate 170
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ICCT LCA study finds only battery and hydrogen fuel-cell EVs have potential to be very low-GHG passenger vehicle pathways

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The ICCT has conducted a comprehensive global and temporal life-cycle assessment of GHG emissions from a variety of alternative passenger car powertrains and fuels. This study incorporates the near-term global warming potential of methane leakage emissions of natural gas and natural gas-derived hydrogen pathways.

Hydrogen 418