Why has a heavily Republican city in Texas, chock full of climate change sceptics, become the first city in the South to be powered entirely by renewable energy? And why, just a few miles away, has a small town consisting of a lone truck stop and a deserted dirt road they call Main Street, become the richest area in the entire United States? As Donald Trump pulls the US out of the Paris Climate Accords, and talks up the use of fossil fuels, we explore the unexpected reality of the energy industry in the “oil state”.