And just like in the 70s, desertion has become a growing problem.
But the smell, a pungent stench that emanates from the accumulation of bird feces on the rocks, has become a growing problem.
Fireworks have always been viewed as a European phenomenon but they have become a growing problem in English football with eight incidents in the 2010/11 season, 72 in 2011/12 and so far this season 96 incidents.
Many supporters of traditional hunting with horses and hounds, including Stanley Johnson, argue that trophy hunting has become a growing problem because of the Hunting Act 2004, which limits traditional stag hunting to two hounds at a time.
Though some health experts here and abroad question whether overuse of the Internet or computers in general is an addiction in the strict medical sense, many agree that obsessive computer use has become a growing problem in many countries.
But in recent years, the germ has become a growing problem for veterinarians, with an increasing number of infections turning up in birds, cats, dogs, horses, pigs, rabbits and rodents.
While modern technology was intended to make the chores of daily life less difficult, the proliferation of automatic motors, sensors and lights into more household items has become a growing problem for the strictly observant.
All this happens in a split second, in effect turning superconductors into reusable fuses which, because they rely on the laws of physics, are fail-safe to boot.Fault currents are likely to become a growing problem as smart grids grow increasingly complex, with ever more suppliers and complicated load management.
"The dangers of too little privacy may be lost in the global Facebook fad, but it's likely to become a growing problem elsewhere," said a popular blogger known online as Akky Akimoto, who does not reveal his real name and refuses to be photographed in public.
Although no one knows for sure how often trees are filched from public land, state officials and environmentalists say that it has become a growing problem as the market value for hardwoods like black cherry and chestnut has risen to $1,000 or more per tree.
