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Showing posts with the label 2021 at 08:01PMTime

Fossil Fuel Companies Say Hydrogen Made From Natural Gas Is a Climate Solution. But the Tech May Not Be Very Green

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September 22, 2021 at 08:01PM As a committee of climate scientists and environmental officials deliberated over how to drastically cut New York State’s carbon footprint last summer, natural gas industry representatives were putting forward a counterintuitive pitch: hydrogen, made from fossil fuels. The concept was simple, explained natural-gas proponents serving on the state’s climate-action council. Industrial hydrogen suppliers had long used a process called steam methane reforming (SMR) to produce what the industry calls “gray” hydrogen from natural gas—a system that accounts for 95% of all current hydrogen production, but releases large amounts of carbon emissions. Emissions-free “green” hydrogen can be produced using water and renewable electricity, but that tends to be more expensive than making gray hydrogen. The solution, gas-industry representatives said, was to pursue a kind of carbon compromise. Instead of making expensive green hydrogen, industrial gray hydrogen ...

They’re Healthy. They’re Sustainable. So Why Don’t Humans Eat More Bugs?

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February 26, 2021 at 08:01PM Sylvain Hugel is one of the world’s foremost experts on crickets of the Indian Ocean Islands . So when he received an email from a fellow entomologist in March 2017 asking for help identifying a species in Madagascar that could be farmed for humans to consume, he thought it was a joke. “I’m working to protect those insects, not eat them,” the French academic responded tartly. But the emails from Brian Fisher , an ant specialist at the California Academy of Sciences, in San Francisco, kept coming. Fisher had been doing fieldwork in Madagascar when he realized that the forests where both he and Hugel conducted much of their research were disappearing. Nearly 80% of Madagascar’s forest coverage has been destroyed since the 1950s, and 1-2% of what remains is cut down each year as farmers clear more trees to make room for livestock. The only way to prevent this, Fisher told Hugel in his emails, was to give locals an alternative source of protein. ...