Complex sentence: CeroCO2 offers tools to calculate reduce and offset greenhouse gas emissions in renewable energy, energy efficiency and reforestation projects in developing countries in order to ensure that improvements in living standards in these nations do not pose a further threat to the world's climate.
Split into simpler sentences: CeroCO2 offers tools to calculate reduce and offset greenhouse gas emissions in renewable energy, energy efficiency and reforestation projects in developing countries. It aims to ensure that improvements in living standards in these countires do not pose a further threat to the world's climate.