Consistent with all forms of Climate Change mitigation, either in the form of internal abatement, the improved efficiency within businesses, project based reductions or Emissions Trading Schemes, the aim is to achieve reductions based on the lowest cost and in line with this theory the Developing World is seen as 'low hanging fruit'. Projects within these schemes and locations must be 'additional' meaning that the people behind a project need to demonstrate that the emission reductions would not have occurred without the combined incentives that carbon credits provide. Due to financial, political or other barriers, the project must prove it goes beyond a "business as usual" scenario and that greenhouse gas emissions are lower with the project than without it.