Mmmm can a person visit a vet to get one of these.....Mentions all the methane from sheep and cows but what about us humans, very usefull after a good curry.

Jab to cut methane emissions

David Adam
Thursday September 23, 2004
The Guardian

Scientists have developed a jab to stop sheep belches and farts from damaging the environment.
Wind from sheep, cows and other farm animals accounts for about 20% of global emissions of methane - a greenhouse gas 23 times more potent, volume for volume, than carbon dioxide.

Now a team led by André-Denis Wright of the Commonwealth Scientific and Industrial Research Organisation in Perth, Australia, has devised a vaccine against the microbes that produce methane in sheep rumens.

After two injections, sheep burped out 8% less methane in a 13-hour test in a closed chamber. The results appear in the journal Vaccine.

The vaccine was effective against 20% of the bugs inside the 20 sheep used in the trial. Scientists are now working to increase this and to cut methane production further. Emissions from farm animals are a particular problem in Australia and New Zealand, where they account for up to 80% of methane produced.

Researchers in Britain and other countries have experimented with changing composition of feed to make intensively farmed animals produce less methane. A vaccine would be more useful because it could be given to all ruminants. David Adam