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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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EIA: CO2 emissions from US power sector have declined 28% since 2005

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The power sector has become less carbon-intensive as natural gas-fired generation displaced coal-fired and petroleum-fired generation and as the noncarbon sources of electricity generation—especially renewables such as wind and solar—have grown. In 2005, noncarbon sources accounted for 28% of the US electricity mix.

2005 414
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Solar to meet half of global electricity demand growth in 2024 and 2025

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Photo: Cypress Creek Renewables Global electricity demand is rising at its fastest rate in two decades, but solar is on course to meet half of demand growth, says the IEA. Renewables are also set to expand rapidly this year and next, with their share of global electricity supply forecast to rise from 30% in 2023 to 35% in 2025.

Solar 52
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GWU team develops cost-effective solar process to produce lime for cement without CO2 emission

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Conventional thermal decomposition production of lime (left) versus STEP direct solar conversion of calcium carbonate to calcium oxide (right). Conducive to our new solar process, electrolysis of molten carbonates forms oxides, which precipitate as calcium oxide when mixed with calcium carbonate. Click to enlarge. —Licht et al.

Solar 285
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SRI developing process for co-gasification of methane and coal to produce liquid transportation fuels; negligible water consumption, no CO2

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Researchers from SRI International (SRI) are developing a methane-and-coal-to-liquids process that consumes negligible amounts of water and does not generate carbon dioxide. In conventional CTL approaches, energy is supplied by burning a portion of the coal feed, which then produces carbon dioxide. Process flow diagram.

Coal 257
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EIA: US energy-related CO2 dropped 2.7% in 2015; of end-use sectors, only transportation increased

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These factors included a decline in the carbon intensity of the energy supply (CO 2 /British thermal units [Btu]) of 1.8%; and a 3.4% Specific circumstances, such as the very warm fourth quarter of 2015 and relatively low natural gas prices, put downward pressure on emissions as natural gas was substituted for coal in electricity generation.

2015 150
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3 Oil Majors That Bet Big On Renewables

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Further, according to Rystad Energy, Big Oil is expected to pump in $166B into new oil and gas ventures over the next five years, thus dwarfing the currently specified outlay of just $18B (less than 10% of capex) for solar and wind energy projects. Good case in point: Italian multinational oil and gas giant Eni S.p.A.

Oil 418