Did You Know?
The sensors that detect potential leaks in a hydrogen-powered internal combustion engine were developed by NASA to detect hydrogen leaks during space shuttle launches. Learn about other NASA innovations in this interactive animation from Discovery Channel.
The big question with the hydrogen economy is, "Where does the hydrogen come from?" After that comes the question of transporting, distributing and storing hydrogen. Hydrogen tends to be bulky and tricky in its natural gaseous form.
Once both of these questions are answered in an economical way, the hydrogen economy will be in place.
We'll look at each of these questions separately in the following sections.