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CICERO-led study finds global warming effect of leaked hydrogen almost 12x stronger than CO2

Green Car Congress

JUNE 12, 2023

Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. Hydrogen is not a greenhouse gas, but its chemical reactions in the atmosphere affect greenhouse gases such as methane, ozone, and stratospheric water vapor. Sand et al.

Hydrogen 435
Hydrogen Global Ozone CO2 435
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Study finds climate impact of long distance trip can vary by factor of 10 depending upon mode, efficiency and occupancy

Green Car Congress

JUNE 27, 2013

A team from Austria and Norway has found that the climate impact from a long-distance trip (500–1,000 km, or 310–621 miles) can easily vary by a factor of 10 per passenger depending on mode choice, vehicle efficiency, and occupancy. Insert: Zoom in for bus, trains, and cars. Credit: ACS, Borken-Kleefeld et al. Click to enlarge.

Climate 186
Climate Diesel Emissions Climate Change 186
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