In future columns, I’d like to discuss in detail these technologies and how they are so important to a sustainable future. But what is energy sustainability, and how can it be viewed globally?
A typical hydraulic fracturing well requires two to four million gallons of fresh water. Multiply that times hundreds of thousands of wells developed in the U.S. and Canada over the last decade and you get the idea – the shale revolution has an unquenchable water habit.
Although water use for hydraulic fracturing is a relatively small proportion of a state’s overall water use, at the local county or municipal level it is typically very high, often exceeding the water use of all residents in a region.
These factors are not universally present. We have diversity and divergence – and an absolute requirement to reduce greenhouse gas emissions worldwide – at play.
There is cause for caution because, as in all complex processes, there is risk.
Risk