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Recent Examples of propellantsPressurized helium is routinely used in rockets to push propellants to engines and to help clean and dry tanks and propellant lines when needed.—
William Harwood,
CBS News,
19 Mar. 2026
But the race to deploy AI has complicated those commitments and sent soaring greenhouse gas emissions, which come from the burning of fuels like oil, coal and gas, and heat the planet.
—
Alexa St. John,
Los Angeles Times,
24 June 2026
Heavy transport, aviation, marine, and long-haul freight need energy-dense fuels, and this year’s jet fuel spike showed why alternatives matter.
The poem that precedes it, the Iliad, is a cruel and beautiful work, the ultimate story of war; the Odyssey has its warlike passages, but its central energies seem almost commonplace beside the merciless fury of Achilles.
—
David Denby,
New Yorker,
21 June 2026
On personal Spielbergian projects, Zorro, still in pre-production, had already consumed the energies of five writers and three directors, while Amistad’s racial theme was stirring at once admiration and controversy.