Carbon trail

Plateaux	Dates	Pedagogy: https://iiraorg.com/carbon-trail/
ctN1	1.7 million yrs	Inquiry into the prehistory control and use of fire
ctN2	12000 BC	Examination of fire as the hearth and religious focus of early cities
ctN3	3500 BC	Learning about the earliest uses of coal in society
ctN4	400 BC	Learning about ancient city thermodynamic processes (e.g., Rome)
ctN5	1780 AD	Inquiry into the nature of the steam engine
ctN6	1850 AD	Examination of the uses and deployment of oil