= Zero Emission Hyper Sonic Transport
{wiki=Zero_Emission_Hyper_Sonic_Transport}
Zero Emission Hypersonic Transport (ZEHT) refers to advanced transportation systems designed to travel at hypersonic speeds—generally considered to be speeds greater than Mach 5, or five times the speed of sound—while producing zero harmful emissions. This concept is part of a broader effort to develop sustainable and eco-friendly transportation options that can reduce the environmental impact associated with air travel, particularly in terms of greenhouse gas emissions and other pollutants.
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