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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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The recovery of energy demand in 2021 was compounded by adverse weather and energy market conditions—notably the spikes in natural gas prices—which led to more coal being burned despite renewable power generation registering its largest growth to date. CO 2 emissions from natural gas rebounded well above their 2019 levels to 7.5

Emissions 370
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GTI quantifies opportunity to produce low-carbon renewable natural gas (RNG) from wood wastes

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GTI has released a site-specific engineering design titled “ Low-Carbon Renewable Natural Gas (RNG) from Wood Wastes ”. According to the analysis, California has the potential to produce tens of billions of cubic feet of RNG per year from the wastes that are now being used for biomass-based electricity. Source: GTI.

Waste 281
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GWU team develops cost-effective solar process to produce lime for cement without CO2 emission

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A team at George Washington University has demonstrated a new solar process that can produce lime (CaO) for cement without any emission of carbon dioxide, and at lower projected cost than the existing cement industry process. Thus no CO 2 is formed, to eliminate cement’s greenhouse gas contribution to anthropogenic climate change.

Solar 285
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GWU team demonstrates one-pot process for optimized synthesis of controlled CNTs from CO2; coupling cement and C2CNT

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Stuart Licht ( earlier post ) have developed a new process that transforms CO 2 into a controlled selection of nanotubes (CNTs) via molten electrolysis; they call the process C2CNT (CO2 into carbon nanotubes). This synthesis consumes only CO 2 and electricity, and is constrained only by the cost of electricity.

CO2 150
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CARB releases summary of results of first CO2 cap-and trade auction; CPUC proposes how to use the revenues

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That means new jobs, cleaner water and air—and a working model for other states, and the nation, to use as we gear up to fight climate change and make our economy more competitive and resilient. large amounts of greenhouse gas emissions and operate in competitive markets. —ARB Chairman Mary D. allowance revenues.

CO2 244
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GWU team develops low-cost, high-yield one-pot synthesis of carbon nanofibers from atmospheric CO2

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Recent interests are focusing on renewable feedstocks, i.e., lignin and cellulose, rather than conventional chemicals from the natural gas or petroleum industry. To power the syntheses, heat and electricity are produced through a hybrid and extremely efficient concentrating solar-energy system. —Stuart Licht.

Low Cost 150
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Researchers combining CO2 storage and geothermal energy production

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The CO 2 will then be pulled to the surface and fed into a turbine that converts heat into electricity. Our planned demonstration is the first attempt at proving that we can simultaneously mitigate greenhouse gas induced climate change and generate clean baseload power using geothermal energy. —Barry Freifeld.

Energy 244