Hydrogen Injection Can Make Diesel Exhaust Look Cleaner. The Carbon Math Still Fails.
Summary
<p>A cleaner-looking diesel exhaust plume is evidence about smoke, not climate performance. Onboard hydrogen-injection systems ask customers to skip that distinction: they use electricity produced by the diesel engine to split water, feed the resulting hydrogen or oxyhydrogen back into the same engine, and then present a change in exhaust ... [continued]</p> <p>The post <a href="https://cleantechnica.com/2026/07/12/hydrogen-injection-diesel-smoke-not-climate/">Hydrogen Injection Can Make Diesel Exhaust Look Cleaner. The Carbon Math Still Fails.</a> appeared first on <a href="https://cleantechnica.com">CleanTechnica</a>.</p>
<p>A cleaner-looking diesel exhaust plume is evidence about smoke, not climate performance. Onboard hydrogen-injection systems ask customers to skip that distinction: they use electricity produced by the diesel engine to split water, feed the resulting hydrogen or oxyhydrogen back into the same engine, and then present a change in exhaust ... [continued]</p>
<p>The post <a href="https://cleantechnica.com/2026/07/12/hydrogen-injection-diesel-smoke-not-climate/">Hydrogen Injection Can Make Diesel Exhaust Look Cleaner. The Carbon Math Still Fails.</a> appeared first on <a href="https://cleantechnica.com">CleanTechnica</a>.</p>