You can reduce your greenhouse gas (GHG) emissions by increasing your energy efficiency and by switching to cleaner energy sources (those with lower emissions factors like solar power) where possible.
Improvements at your property that increase the energy efficiency will in most cases lower your carbon footprint and your GHG emissions. For help on improving the energy efficiency of your property, see the FAQ articles on this page: How to Improve Energy Efficiency
In addition to efficiency improvements, informed decisions about energy supply can lower your greenhouse gas emissions even further. You can review the emissions factors for various types of source energy in this Greenhouse Gas Emissions Technical Reference. To learn more about switching to cleaner energy, see this FAQ: Are there resources to help me get started with green power?
Keep in mind that purchasing cleaner energy does not, in itself, lower the energy demand for your property or increase its efficiency. Therefore, properties should strive first to increase energy efficiency and then to decrease carbon emissions through the purchase of clean energy.