Four Rocky Mountain states will cooperate on developing ways to make the most abundant element in the universe — hydrogen — more available and useful as clean-burning fuel for cars, trucks and trains, the states’ governors announced Feb. 24. Colorado, New Mexico, Utah and Wyoming will plan a “hydrogen hub” to be built somewhere in the region, drawing from $8 billion in recently approved federal infrastructure funding for four or more such regional hubs in the U.S. Goals will include economic development and the research into cost-effective generation, transportation and use of clean hydrogen, the states’ agreement said.