The article subtitled "Family of four enjoys benefits of living in a NetZero home" sounds great, but the photo shows a pile of wood logs to be burnt in a fireplace.
In addition to emissions of carbon dioxide (CO2), wood heating is in fact a major source of air pollutants such as carbon monoxide (CO), volatile organic compounds (VOC), fine particles (PM2.5), nitrogen oxides (NOx) and polycyclic aromatic hydrocarbons (PAH).