Interest in renewable energy is growing, particularly among nonprofits such as universities and colleges that are looking to reduce or even eliminate carbon emissions. That interest could fuel more construction of net zero buildings, so called because they produce as much energy as they consume over the course of a year.

It may be allergy season, but poor indoor air quality could be the culprit behind many of common health complaints employees have on the job. Small businesses are often the most vulnerable to the problem.