Is It Starch or Cellulose? NREL Offers Answers That Could Unlock Incentives for Making Cellulosic Ethanol

Cellulosic ethanol—produced from fibrous cellulose, which gives plants strength and rigidity—offers a range of attractive benefits. When used as a vehicle fuel, it can support deep reductions in greenhouse gas emissions, with a carbon footprint 73% smaller than conventional gasoline. Ethanol made from cellulose can be sourced from widely available crops, like corn stover or switchgrass, that are adapted to grow in a wide range of climates. Not least, it can support clean energy jobs and economic opportunity in rural communities.

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Five ways ‘green’ carbon policies damage forests – and how we can fix the problem

Off-setting our carbon footprint is a way for many of us to feel we are doing our bit to save the planet from the ongoing climate emergency. Tree planting schemes have become a popular way to do this. At corporate level, big companies do the same kind of thing to offset the environmental damage they cause, often by signing up to green policies that are committed to reforesting the planet. But in many cases this is perceived as “greenwashing” – where corporations are simply adopting a veneer of environmental responsibility.

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Waste as a Raw Material – Recycling Instead of Disposing

Products have a second life: after their initial use, we must regard them as a valuable resource. Waste should be recycled, not dumped in landfills or otherwise disposed of in nature. In the long term, end-of-life products and unavoidable waste are likely to become the main alternative raw materials for the plastics industry. But in order to make greater use of these sustainable resources, waste management systems must be significantly improved and redesigned.

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New Modular Green Hydrogen Fuel Station Keeps It Above Ground

Green hydrogen fans have lots to cheer about these days as one huge mega-project after another takes shape, but there is also some interesting activity bubbling up on the small end of the scale. With that in mind, let’s check out a new modular, off-grid, above-ground, rainwater harvesting, solar powered hydrogen fuel station over in Australia. Wait, doesn’t the US have one of those, too?

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New Combustion Strategies Plus Biofuels Add Up to Cleaner, More Efficient Cars and Trucks

Last year, average fuel economy for light-duty vehicles hit a new high, while the pandemic reduced time on the road, fuel consumption, and emissions. These short-term reductions have spurred efforts to cement even greater long-term fuel efficiency gains and emissions reductions for gasoline-powered vehicles, which are likely to make up the majority of the U.S. automotive market for years to come. At the same time, to meet delivery demands from surges in online ordering by quarantined Americans, freight trucks have regained activity and diesel consumption levels even higher than those seen prior to the pandemic.

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From Wet Waste to Flight: Scientists Announce Fast-Track Solution for Net-Zero-Carbon Sustainable Aviation Fuel

Aircraft stand at a turning point in the race to reduce emissions to mitigate climate change. Although the aircraft sector only accounts for a sliver of transportation-related greenhouse gas (GHG) emissions in the United States—at 9%—it is difficult to decarbonize.

With jet fuel demand set to double pre-pandemic levels by 2050 and airlines ramping up pledges to reduce emissions, innovations in fuels, engines, and emerging technologies are critical to closing the gap to net zero.

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