Category: Climate change
eVTOL Certification Is Coming, But Commercial Runway Isn’t
The question around electric vertical takeoff and landing (eVTOL) aka Jetsons air taxi certification has shifted. It is no longer about whether regulators will create a pathway. Both the FAA and EASA have done that work. The FAA finalized powered lift operational rules in 2024 and published Advisory Circular 21.17-4 … [continued]
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Most Maritime Shipping Battery Propulsion Studies Are Already Obsolete
Most maritime battery studies are already obsolete. That is not a criticism of the researchers who wrote them. It is a recognition that their assumptions were grounded in the battery costs and energy densities available at the time. Several of the most detailed recent merchant shipping studies modeled battery system … [continued]
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Where are Michigan’s moose?
A collaborative study underway between the Michigan Department of Natural Resources, Keweenaw Bay Indian Community, and Northern Michigan University is working to understand why the moose population remains stagnant.
Florida Legislation Would Ban Local Climate Policies
The Florida legislature is considering bills that will ban local climate mitigation strategies it says are too costly.
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Michigan officials criticize end to EPA’s “Endangerment Finding”
The EPA reversed federal policy on greenhouse gas emissions Thursday. Some Michigan officials say that throws state rules into question.