rw-your dog, the environmental hazard

Man's best friend could be one of the environment's worst enemies, according to a new study which says the carbon pawprint of a pet dog is more than double that of a gas-guzzling sports utility vehicle.

Combine the land required to generate its food and a "medium" sized dog has an annual footprint of 0.84 hectares (2.07 acres) -- around twice the 0.41 hectares required by a 4x4 driving 10,000 kilometres (6,200 miles) a year, including energy to build the car.

What is the carbon footprint of a human?  I'm sure more than a single dog.  So humans shouldn't have children because we're just doubling our carbon footprint.

And pets' environmental impact is not limited to their carbon footprint, as cats and dogs devastate wildlife, spread disease and pollute waterways, the Vales say.

With a total 7.7 million cats in Britain, more than 188 million wild animals are hunted, killed and eaten by feline predators per year, or an average 25 birds, mammals and frogs per cat, according to figures in the New Scientist.

Likewise, dogs decrease biodiversity in areas they are walked, while their faeces cause high bacterial levels in rivers and streams, making the water unsafe to drink, starving waterways of oxygen and killing aquatic life.

And cat poo can be even more toxic than doggy doo -- owners who flush their litter down the toilet ultimately infect sea otters and other animals with toxoplasma gondii, which causes a killer brain disease.

Um... because native wildlife doesn't poop in the woods and pollute rivers and streams?  KILL ALL THE WILDLIFE because they pollute our rivers and streams!

Other potential positive steps include avoiding walking your dog in wildlife-rich areas and keeping your cat indoors at night when it has a particular thirst for other, smaller animals' blood.

As with buying a car, humans are also encouraged to take the environmental impact of their future possession/companion into account.

But the best way of compensating for that paw or clawprint is to make sure your animal is dual purpose, the Vales urge. Get a hen, which offsets its impact by laying edible eggs, or a rabbit, prepared to make the ultimate environmental sacrifice by ending up on the dinner table.

"Rabbits are good, provided you eat them," said Robert Vale.

IMO no cat should be left outside to kill birds and/or poop in my flower garden but that's just me.

This whole article is ridiculous, imo.