WHEN is a greenhouse gas not a greenhouse gas?

When it is emitted by a feral camel.

A loophole in global carbon accounting standards means feral camels don't emit methane, yet domesticated camels do.

The bizarre loophole in the Kyoto Protocol has been used by Climate Change Minister Penny Wong to justify the Federal Government's refusal to carry out a cull of Australia's feral camels, which are also damaging the desert environment.