Most of the highest-rated paints for both the interior and exterior of your home have a high level of VOC’s (Volatile Organic Compounds) in their design. While these toxic chemicals are unlikely to cause health issues when on the outside of your home, these emissions can contribute to environmental damage.
One compromise to consider is to use recycled paint on your home. The performance is comparable to other paints, but you can rest a little easier knowing that you’re helping to do your part for the earth.