Emissions from the transport sector account for around 14% of global emissions.
Here’s a very important question:
Emissions from the transport sector account for around 14% of global emissions.1 Passenger vehicles account for around half of these carbon emissions from transportation and are therefore a key focus of climate policies, including through vehicle electrification. However, while such personal transport accounts for half of transport emission, long-haul movement is responsible for the remainder, with aviation registering at 12%, trucks 29% and shipping at 11% of overall transport emissions. Finding solutions to reduce emissions from these activities is therefore essential to ensure the decarbonisation of the transport sector as a whole.
Although the goalposts are clear — to stick to the guidelines of the 2015 Paris Agreement greenhouse gases (GHG) related to transport must be halved by 2050 — heavy duty transport emissions continue to rise. The aviation industry has seen fuel burn per passenger-kilometre drop by half since 1990 but absolute emissions have risen 70% since 2005 and are not on track to reach net-zero emissions by 2050. Net-zero means any emissions released must be met by an equal amount taken from the atmosphere…
And here’s a possible answer:
Zero-emissions aeroplanes that use AMMONIA as jet fuel rather than kerosene could take to the skies ‘within years’, British scientists claim
- Ammonia burns less easily than kerosene-based fuels and so could be safer
- To be used to power an engine, ammonia needs to be burnt along with hydrogen
- This can be released from ammonia itself by applying heat and a special catalyst
- Heat exchangers and catalytic reactors could be added to a jet with few changes
- The ammonia-based fuel would only produce water vapour and nitrogen waste
Zero-emissions aeroplanes could take to the skies ‘within years’ thanks to British scientists who are developing technology that will allow them to run on ammonia. The collaboration between Oxford-based Reaction Engines and the UK Science and Technology Facilities Council could see ammonia replace kerosene as jet fuel. Unlike kerosene-based jet fuel, ammonia is less of a fire hazard and burns without releasing the greenhouse gas carbon dioxide that contributes to climate change.
And both the mainstream and professional press seem quite excited:
With some more ideas for the future here: