Natural Gas
“Gas has a lower carbon footprint than oil. Nigeria is the country with the largest gas reserves in Africa and the ninth largest in the world, so it makes sense to make use of these resources.”
https://www.bbc.co.uk/news/business-58652848
“Many see the gas sector as being kinder to the environment than oil, and therefore a viable proposition alongside renewable energy. Gas-fired plants already account for about 80% of Nigeria’s electricity capacity.
According to some experts, natural gas plants are more than twice as reliable as solar plants and produce four times more energy per acre of land.
People see gas as a halfway house between fossil fuels like oil, and renewable energy.”
That is how I see it, too.
Methane engines have been about a very long time.
Clark, has said we should reserve fossil fuels for purposes such as agriculture.
You could make Methane powered combine harvesters, Methane powered quarry dump trucks.
Scotland is making Methane powered ferries.
https://www.bbc.co.uk/news/uk-scotland-51114275