Um, we seem to have overlooked a critical detail.
"In addition, electrolysis creates no greenhouse gases, whereas making a pound of hydrogen from natural gas produces 4 pounds of greenhouse gases."
Perhaps this should have read electrolysis creates no ADDITIONAL greenhouse gases. That electricity has to come from somewhere, and currently we get 50% of our power from coal, which certainly produces greenhouse gases.
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.