A car running on fossil diesel emits about 2.7kg of carbon dioxide per litre and a petrol car produces 2.3kg per litre. Using biofuels to displace diesel or petrol can reduce emissions by up to 90
Published by Ian Tiseo , May 31, 2023. Passenger cars produced approximately three billion metric tons of carbon dioxide emissions worldwide in 2020. The emissions produced by passenger cars have Although diesel automobiles get 25 to 35 percent better mileage and produce 35 to 400 times less carbon dioxide than comparable gasoline cars, they may emit 25 to 400 times greater mass of particulate black carbon and related organic matter (“soot”) per kilometer. This chart shows the breakdown of total greenhouse gases (the sum of all greenhouse gases, measured in tonnes of carbon dioxide equivalents) by sector. Electricity and heat production are the largest contributors to global emissions. This is followed by transport, manufacturing, construction (largely cement and similar materials), and agriculture.
In the worst case scenario, an electric car with a battery produced in China and driven in Poland still emits 37% less CO2 than petrol. And in the best case scenario, an electric car with a battery produced in Sweden and driven in Sweden can emit 83% less than petrol. We also see that electric cars bought in 2030 will reduce CO2 emissions four
The EEA has published the provisional data for the average CO 2 emissions from new passenger cars and vans registered in the EU and in Iceland in 2018. After a steady decline from 2010 to 2016, by almost 22 grammes of CO 2 per kilometre (g CO 2 /km), average emissions from new passenger cars increased in 2017 by 0.4 g CO 2 /km.

Carbon footprint of cars in the United Kingdom in 2023, by market segment and fuel type (in grams of carbon dioxide equivalent per kilometer) [Graph], GOV.UK, June 7, 2023. [Online].

00:00. 00:00. DETROIT, June 29 (Reuters) - You glide silently out of the Tesla (TSLA.O) showroom in your sleek new electric Model 3, satisfied you're looking great and doing your bit for the
56 to 494 kilograms of carbon dioxide per kilowatt-hour of battery capacity (kg CO 2/kWh) for electric vehicles. Several of the studies also provide estimates for the equivalent amount of emissions per kilometer driven over the vehicle lifetimes. These generally find 1–2 g CO per kilometer per kWh of battery capacity.
According to the U.S. Department of Energy, " [h]ighway vehicles release about 1.7 billion tons (1.5 billion metric tons) of greenhouse gases (GHGs) into the atmosphere each year — mostly in the form of carbon dioxide (CO2) — contributing to global climate change. Each gallon of gasoline you burn creates 20 pounds (9 kilograms) of GHG. Around 50/220 ≈ 25% 50 / 220 ≈ 25 % of the lifetime emissions for a gas car come from manufacturing. For electric cars, its 62.5/170 ≈ 35% 62.5 / 170 ≈ 35 %. As added confirmation, I checked the gas car numbers against other sources. This 2010 Guardian article finds that producing a medium-sized car produces 17 tonnes of CO2. .
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    • how much co2 do diesel cars emit