Keywords
2, 30's, 30-35, 30-40, 30s, 35-39 years, 35-40, 40's, 40-44 years, 40-45, 40-50, 40s, 45-50, 50-55, 50-60, 55-60, abundance, adult, affiliation, alliance, alternative, alternative energy, america, american, americas, arms outstretched, arranging, associate, association, blue sky, builder, building, caucasian, change, chatting, choice, clear sky, cloudless, co-worker, collaborating, collaboration, colleague, color, color image, colour, communicating, communication, companion, conserving, constructing, construction, construction site, construction worker, conversation, conversing, cooperation, copy space, day, daylight, daytime, defending, dialog, dialogue, discussing, displaying, eco-friendly, efficient, electric, electricity, energy, environment, environmentalism, examining, exhibiting, explaining, eyeglasses, fellow, fifties, fifty, forties, forty, fuel and power generation, gentleman, gesturing, glasses, green, green energy, green living, green technology, guy, hard-hat, hearing, human, human being, il, illinois, listener, listening, low angle, low angle view, male, man, mature adult, mature men, mid adult, mid adult men, mid life, middle age, middle aged, middle-age, middle-aged, motioning, natural resources, negative space, north, north america, occupation, operating, option, organizing, outdoor, outdoors, outside, panel, partner, partnership, people, person, photography, planning, pointing, power, powerful, project, protection, protective workwear, renewable energy, resourceful, safeguard, safety, scrutinizing, security, shades, showing, sky, solar, solar array, solar energy, solar panel, solar power, speaking, specialist, spectacles, standing, sunglasses, sunlight, sunny, sunshine, sustainability, talker, talking, team, teamwork, technician, technology, thirties, thirty, together, togetherness, two, two people, u.s, u.s.a, united states, united states of america, us, usa, using, vertical, waist up, waist-up, western european, white space, winchester, work, worker, working, working together, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, bld173597