Everywhere has been affected by global warming, and Australia is not excluded. it is estimated that by 2030 the incidence of tropical diseases in Eastern Australia will have spread from Queensland to southern New South Wales. Diseases and pest in question include cattle tick,fruit fly,Ross River virus,paralysis tick,blue tongue virus and blowfly (affecting sheep) and cane toads. Biting midge,for intance,had been confined to the coastal region north of Rockhampton,but now occurs around Brisbane and may soon be found in sydney.