[deepnotderp]

> t also required just the right combination of natural resources (coal) and economic conditionsL deforestation

This argument is repeated often, but I don't think it's really true. Both Savery and Newcomen's engines were initially aimed at evacuating flooded metal mines and not coal mines.

[lisper]

Source? Because Wikipedia says:

"A few Savery pumps were tried in mines, an unsuccessful attempt being made to use one to clear water from a pool called Broad Waters in Wednesbury (then in Staffordshire) and nearby coal mines."