Cool: How Air Conditioning Changed Everything
The BBC have recently shared an interesting article called 'How air conditioning changed the world'.
The article talks in detail about the history of air conditioning, the demand for it in the 21st century and the effect on the environment.
It also talks about American Engineer, Willis Carrier, who is known for inventing air conditioning and also how the Roman emperor Elagabulus used snow from mountains for his own back garden to cool himself down.
You can find the full article here: http://www.bbc.co.uk/news/business-39735802