Carbon emissions do not respect international borders; as the CO2 enters the atmosphere, it spreads out and has an impact on the global climate. This means that 1 tonne of CO2 emissions emitted in Mumbai is the same as 1 tonne of CO2 being emitted in Brisbane. This is the reason why we can compensate carbon emissions by supporting projects in other nations. The solution to climate change cannot be provided by one country going zero carbon - we need global energy supply and global transportation to also be zero carbon, as well as helping protect established forests (the carbon stores) from deforestation. Supporting and encouraging more and more projects like these around the world through finance initiatives is a significant part of the solution to climate change. Whilst governments (around the world) delay in providing the funding and support needed for these projects, you have the chance to step up and help out by offsetting your emissions.