Fourthly, whereas taxes on unhealthy foods may be problematic because of concern about unintended substitution effects (for example, a tax on foods high
in saturated fat may
lead to a shift towards salty foods), 13 the
potential substitutes for sugar sweetened
drinks (diet
drinks, fruit juice, milk,
water) are probably less harmful for health.
Increased shale - gas production created a boom
in some parts of the country but has also
led to concerns over
potential contamination of
drinking water and possible human health impacts related to hydraulic fracturing.